Soul Calibur got me with Ivy. Worth it.
Mortal Kombat got me with Mileena. SO F**KING WORTH IT. Also turned out to be a kick ass game! Made me an MK fan right away. Also a Mileena fan (you know, aside from the teeth thing...)
Mainly only fighting games because I know that once I get bored with jiggling my favorite female character around and kicking asses with her nice ass, I can then play a story mode (or several), play with my friends, and laugh at how my female friends stare at Jax's abs for so long.
Pff Perverts...