Erhmm, none of them, in fact my "inellect" (I'm sorry but that's a hilarious word to misspell) would be significantly lower since i learned English from multiplayer gaming and i have learned or at least be inspired to learn about history and different cultures from games, and i do most of my reading in RPGs.
But if there where no games and i had still learned English well enough to be able to discuss my interests i would probably be on a movie forum.
ps. you also misspelled strength and flexibility.