I have a WCS94, and I really like it, but if at the time I purchased it I would've had the choice between WCS94 and Corvette, I woulda went with Corvette. However, I'm a car guy so the Corvette theme suits me, and I do like the dragstrip toy. They are both fun games though. I can tell you out of all the games I have, most visitors to my gameroom who are not pinheads really like WCS94. Everyone gets the WCS94 goalie and what you're supposed to do with him when he's active. Get balls past him and score goals! Everyone seems to dig that and have fun with it.
I'm thinking that the simple math of the situation will have the majority of people will preferring WCS94 over Corvette by an approximate 2 margin, as WCS94 is ranked 56 in the Pinside Top 100 and Corvette is not even in the Top 100 at number 112 (2 x 56).