Honestly, I have a hard time picking an absolute best coaster, because each coaster type offers it's own unique experience. El Toro is easily my favorite woodie, while Montu is my favorite invert, Apollo's Chariot is my favorite hyper, I-305 my favorite giga, Manta my favorite flier, and TTD my favorite launcher.
However, if I had to pick one coaster to ride, I'd probably pick one that's got a mix of everything, which would be Maverick.
Another coaster I'd really like to see on this list is Boulder Dash, this year's winner of the Golden Ticket award for #1 wooden coaster. This gem is highly deserving of recognition and I'm happy for the staff at Lake Compounce, who were absolutely wonderful on my recent visit.
Unfortunately I can't do coasters anymore because there is a very high risk my back or neck will snap. Thankfully I still can do rides like Spiderman at IOA and for me that's better then a coaster. Instead of having the best part in the beginning and watering down in the end this rides kicks off great and only gets better with an amazing ending. The same can be said for Harry Potter. Yes its all virtual but it's very convincing and I love it. So for me that are now the best coasters.
Also, while I know Intimidator and Intimidator 305 were from different companies, I cannot see how 305 is not on this list and Intimidator is. Intimidator 305 is a wonderful (if intentionally violent, my wife grayed out on it post-reprofile) ride, that I think is great. I think I-305 gets hit by people who rode the ride after they added the trims, but before they reprofiled it, which was not a good time for that ride. Personally, having ridden both MF and I-305, I like MF better, but I can see 100% why someone would like I-305 more. It is an exceptionally good coaster.
My personal favorite does not appear on this list (though I have ridden many of those, and yes, those I have ridden are very, very, very good.) But for my money, give me Montu at Busch Gardens Tampa, and I will be happy. I love that ride, to me it is the best B&M invert out there. I could ride that one 100 times and still be looking forward to ride 101. Montu, for me, is perfection.
1. Bizarro (SFNE)2. Tatsu3. Maverick4. Top Thrill Dragster5. Nitro6. Millennium Force7. Leviathan8. Intimidator9. Griffon10. Apollo's Chariot
I never get how X2 always gets included among the best rides out there. Yes, it is a great ride, but I suspect the high ranking comes more from the uniqueness than the ride itself as that is one of the most punishing coasters I've been on (out of over 250).