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...