Millenium Force and Top Thrill Dragster would almost be a sure thing. As the the third, I went with Gemini over Maverick because I like the uniqueness of the steel rails over the wooden structure. I would expect Magnum, Wicked Twister, and Raptor to get some votes as well.
I haven't ridden GateKeeper or X-Flight yet. I was in the area, so I decided to give Wild Eagle some chances. No one is a bigger fan of B&M, but I will have to say that I like some other syles of coasters better (hypers, inverts, floorless loopers, dive machines). Since I only have a one ride sample size I may be wrong, but I think that there is room for improvement.
I am not sure if I would want all of them to be like X2, but I would like to see the seats tilt some. This is all just food for thought.