Most of my favorite games from my childhood are also some of the very same titles that a certain...
emotional video game nerd has also convinced people are garbage
I've replied about this on another topic, but the easy choice for me is Indiana Jones and the Temple of Doom on the NES. Mostly because I was a huge Indy fan as a kid, and it was by far the best Indy home game I had played to that point. That, and my Mum bought it for me randomly, unannounced - just came home from a shopping trip with it, and said, "Here ya go." Dawwwww.
Runner-up is P.N.03 on the Gamecube. Game got totally dunked on when it released, and my friends thought I was just plain
th00pid for buying it... but I loved that damn game. Still do