Hhmmmm, that's a hard one. I haven't heard much WASP, but there's a song by them in a Zero Skateboad video I have and it's alright. I never really listened to Mötley Crüe, but I think shit like "Girls, girls, girls" is fun when you drink, but I think I'll have to go with WASP.
Here's one that's extremely hard for me to choose from:
Guns N' Roses or Iron Maiden?