I've ridden tons of coasters that aren't top 10 rides and can honestly say that MF is no way the best.
Yeah, MF is a great ride. I honestly really like it, but it is by no means the end-all-be-all of coasters. Once you get over the awesome drop and the speed, you start to realize how somewhat bland and not very intense it is. There is a ton of straight track, almost all the turns are very elongated with very gradual, smooth transitions, and the hills give 'floater air' at best, and that's on a good day.
Like I said, I really do love the ride. It's a great, 'fun' coaster. But at the end of the day, I can't say that it's better than all of the coasters I've been on that give ejector air, crazy intense g's and transitions, or an overall out-of-control ride.
Once again... MF bashing with no substance. Which ride, specifically, are you proposing is "better" than MF? Of course, the "best" is subjective, but for me I really love the 'floater' nature of mf because its unique -- there aren't any rides than even come close to going around those curves at 90 mph 5 ft off the ground -- none. Now, I can see how someone with a different set of preferences might say another ride is more intense and therefore better for a different set of reasons, but I would submit that there is nothing that makes those rides unique. You can get intense anywhere. MF is the only true gigacoaster in the country...