RPG means different things to different people, and none of them are 'wrong' because there is no right or wrong when it comes to what you prefer.
To me personally, Fallout 1 had less meaningful choices because all you ever got was a text box telling you to use your imagination that this action did this. That doesn't mean I disrespect the opinions of people who still like that oldschool style , I appreciate it for what it is, and it just isn't me.
I view RPGs as the 'Indie' kids that are outside of the 'Cool' kids culture, and I view other people saying one game is more 'RPG' than the other as silly as one counter culture 'Goth' kid saying another counter culture 'Goth' kid is being too mainstream for not following the style patterns of the other 'Goth' kids... The whole thing is convoluted...
I do admit however, I can't speak for Fallout 2, because it is the only game in the series I did not play. A lot of what I make it my mods is from Fallout Tactics, which you probably also hate for not being RPG enough though... I always feel so judged when I am around so called 'RPG' gamers... lol
All in good humor though.