I liked NV more than Fallout 3 but I guess its just opinions.
I don't like how the newer games are sacrificing the RPG elements for the shooting ability. While its easier to shoot things without VATS now, the dialog wheel was too limited and didn't actually give you any clue what you were going to say, and its not an RPG anymore. F4 was the worst for that... you want to be whoever you want to be? Tough, you this guy/gal.. get over it.
Played Fallout 3, NV and 4 in order. Probably 800 hours altogether. IMO there is no way im putting 4 in front of any of those 2. I haven't even finished its shallow storyline + WAY TOO MANY INVINCIBLE CHARACTERS WHERE YOU ARE FORCED TO PLAY AS THE GOOD GUY WHO TRYS TOO HARD TO BE A HERO