Thanks to playing Alpha Protocol and KOTOR 2
, I was rather looking forward to New Vegas, so I'll get the good out of the way, writing for companions has improved, with Cass definitely being my fav, aiming has improved thanks to being able to look down the sights, and it has a better (if rushed) ending, alongside better dialogue choices (albeit also rushed at times).
Then. Bugs. Dumb AI. EVERYWHERE.
While it's true F3 had these things, New Vegas is worse, since they seem to happen every single 5 minutes, things frequently pop in from nowhere, enemies randomly stop shooting and stand still, textures fail to load, enemies turn invisible and crash your game if you try the V.A.T.S on them, NPC's start floating in mid air, your allies randomly start killing people, your arm keeps moving so you can't see your Pipboy, and buttons randomly stop working, especially when in combat.
Adding to this is the fact that many of the quests are boring, usually involving you going to different places to talk to people, mostly since they are dragged out far longer than they need to be, a good example being where you have to find three singers for The Tops, since not only are they all over the map, whenever you find one, you have to go back to The Tops in order to find out where the next two are, since the location markers for them are taken off, doubling what's already a rather unremarkable quest.
And finally, the level design and enemy placement is rather poor, since you're often thrown into a completely open area with little cover, surrounded by enemies who wish to keeeel you, resulting in The Many Deaths Of You
, exacerbating this is the fact that absurdly strong enemies appear all over as opposed to when you're at a level to fight them, which killed any ambitions I had to explore since whenever I tried to step away from the plot I was killed before I could get a shot off.
New Vegas is frustrating, all it's improvements are nullified by glitches, poor A.I, lousy enemy balancing, dull quests, and naff level design, say what you want about F3's story, but gameplay wise it beats this.
Also whoever decided to limit you to one humanoid companion deserves a kick in the head
ALSO, blatant invisible walls = ALL OF MY HATE