Out of what I have ridden:
1) Maverick - Blew my mind, my second ride was at night in the front seat and it was absolutely insane.
2) Millennium Force - Pretty good ride, I love the size and the speed but it still doesn't beat Maverick.
3) Magnum - I had a great ride last time I rode it, lots of airtime.
4) Wicked Twister - I rode in the back seat last time I was there I loved it. It actually goes pretty fast and the spiral up the back tower was awesome.
5) Raptor - I love a good B&M invert and that last helix was a great end to the ride.
6) Mantis - Sort of a disappointment, but still a fun ride.
7) Gemini
8) Iron Dragon - what a boring ride...
9) Disaster Transport - lol wut?
10) Mean Streak - the most boring coaster I've ever ridden. I rode it back in 2003 in the back seat. There was no airtime on any hill, it was slow and I decided I would never ride it again.
I did not get to ride Top Thrill Dragster last year on opening weekend because the train couldn't make it over the hill on the first launch, but it did every time on the second launch. It was closed for at least 2-3 hours that day...I wanted to ride so I could get a roll back, but they loaded 2-4 people on each train and I would have had to wait 5 hours to ride - which one of my friends did do. It was a huge disappoint for me, but I am glad I went and rode other rides.