I wan't to know your favorite FNV faction and why.

In Fallout New Vegas I guess it would have to be the Kings. They are good guy, old-school mafia like gang with style who help the people of free side.

@Nukacide I like the new avatar and signature picture, and the Kings seem interesting.

The Legion. They are a great villain and sometimes I enjoy the Legion playthrough. Not to mention they got their inspiration from the Roman Empire, which I find interesting.

@c4in The Romans are interesting.

BoS, they only want the best for humanity. The way I see it is the old BoS taking tech and storing it forever was basically tough love preventing numerous deaths and the new BoS is basically the same thing but now they are helping people with it.

The FNV chapter of the BoS was quite heroic as well, and so they still remain my favourite faction even in this game where they play a minor role. Also, they are willing to accept they lost the war with the NCR and back up the NCR, when the NCR never did anything for them. A truly heroic deed swallowing their pride to defeat the bigger threat.

Ad Victoriam

The Legion, purely from a conceptual stand point though. I don't agree with anything they believe or do, but I think they were written very well. They're easily one of the more unique factions we've got in Fallout. Also Caesar is one of the most well written characters in NV, he's a guy that can get things done, with diplomacy or force.

@Corvo I like the BOS also, although I have only really played Fallout 4,(And watched videos on the history of BOS) I like preserving technology for the good of human kind and I like there heroic ness.

BoS, NCR. Although in the game if they hate, it has the same objective: to bring peace to mojave wasteland.

Probably the Legion, I admire their idealistic military methods. Specifically, they're aware that dependence on technology is flawed. They are trained to master blades; if a gun malfunctions in the midst of a battle, you become only as efficient as your close quarter combat skills. They view a dependency on technology as becoming weak, which in most aspects is true. Anyways, the Legion is my favorite even though they are pretty ruthless.

I don't know really, but the closest one to a favorite would be The Kings. They're good folks with a great goal. Except for Pacer. I hate Pacer. Just go fuck yourself Pacer.

Brotherhood of Steel is and always will be my favorite faction in all the Fallout games (except the BoS in FO3, for that game im more of a Outcast guy). People are always like "But there technology hoarders" but can you really trust the inhabitants of the wasteland to reverse engineer and learn how to make this technology. NO!!! Everyone is just gonna use all the technology until its all broken beyond repair. Also they have tons of power armor which is pretty cool too.

Caesars Legion - they seem to be more interesting and I liked them pronouncing Caesar properly. They may not be always the nicest, but they sure have achieved a plenty and sometimes one has to get hands dirty to achieve anything relevant in this harsh environment.

well let's see..
-post-Tandi NCR is a bureaucratic mess made up of brahmin baron cronies
-BoS are a bunch of LARPing tech fetishists that vaporize anyone on sight caught carrying a laser pointer.
-Then you have Walt Disney, who wants to play Elon Musk in his little city-state. Which is all well and good, except without expansion will result in conquest, if not by Legion or NCR then some other group in the future, it will be inevitable.

Caesar's Legion is made out to be the bad guy the whole game but in reality they had the safest trade routes, most freedom for non-slaves and zero taxation or bloated bureaucracies.
The Legion was in Caesar's own words: "a nationalist, imperialist, totalitarian, homogenous culture that obliterates the identity of every group it conquers."

Only issue is the kind of leader that is needed to inherit Caesar's will can only be produced under an individualistic society, which the legion has completely crushed out of it's governmental ranks. Meaning once Caesar dies, entropy takes over and the order crumbles. You'll notice none of Caesars slave soldiers shared(or even understood for that matter) his philosophy.

At the end of the day, you, the courier are the best faction... But none of that matters anyway because years later the Mojave gets flooded with Tunnelers, "Ghost People", the Red Cloud from the Sierra Madre, all major trade routes become uncrossable and the Dam gets destroyed. The end.

Source:

Of course it is the NCR or the Brotherhood of Steel). I dont remember why they hate each other

For me its Caesar's Legion and the NCR because the Legions and the NCR's armor both look awesome to me.

I'd have to say the Enclave in this one. Which is surprising because in Fallout 3 i loathed them and loved the brotherhood and in this game it was the opposite for me. Was just really cool to see 2 different sides of both of these classic factions. I really liked the Followers of the Apocalypse too and what they stood for, and would probably be the faction I would be in if I lived in this Fallout universe. Other than that I liked the Great Khans in a way as well.

The Followers of the Apocalypse + The Great Khans

The Followers of the Apocalypse have selflessly dedicated themselves to providing aid to the likes of folks that don't appreciate their work. Gamblers, addicts, the maladjusted, all of them flock to them for aid because they know they are altruistic in nature. Ideologically, they are the most charitable organization by default. They don't interfere with political ties of the local operating systems of government but instead seek to better educate people, and that is the most worthy goal. The BoS and NCR are both implied to have liked to have gotten to play with the Death Ray of Helios One (the NCR being an if they learned about it), meanwhile the Followers were actively trying to suppress it's application as a weapon, something the BoS SHOULD have been about.

The Khans while not the best in terms of respecting one another's property, they do stick to themselves and could do wonders if they do work with the Followers as indicated by the Good Endings of New Vegas. I would love to see what a group that had it's foundations in the Pre War Vault Tech + blended with the tribals of old could do without the NCR or Caesar's Legion pressing their numbers.

Edit: That Dead Money Secret Ending is also based on helping Elijah though. But the Tunnelers yes I do see being a problem.

Would defiantly have to say the Brotherhood of Steel and the Khans. The Brotherhood of Steel in this game seem more like a community rather than a military based organization which I loved. I loved seeing how they ran everything and how they cared for each other. Even if the Elder did go a bit too far and order a complete lockdown.

As for the Great Khans...I know their a gang and such, but I do have respect for them. They have their own code and like the BoS they care for themselves. Plus it always feels good siding with them and then telling Papa Khan that they will survive. So, yeah. Defiantly those two.