When I started playing, the lineup at the local arcade was Black Knight 2K, Addams Family, Whirlwind, Earthshaker, T2, Riverboat Gambler, and Dr. Dude. So I started on a variety of machines. We had taken some trips to Wildwood, NJ and the pinball machines in some of the arcades on the boardwalk just overwhelmed me. They were almost all the early SS machines, and they just all seemed like the same game to me at the time.
Now I own a Whirlwind and an Earthshaker, but my first game was a Whitewater. Bought it without ever playing it until i tested it out at the guy's house. I just picked up a Dialed In earlier this year, so for me I tend to like games from the late 80's and newer. I'm sure that when i have a larger collection, there may be an EM or late SS mixed in there. So for me, it seems that it's where I started playing.