By no means is this ride anything but great, but to me the most overrated coaster is Millennium Force... Only because of how outdated it is compared to todays standards and what else is being built around the world! To me it's still getting top-recognition amongst the rankings because of the long list of records it broke when it debuted in 2000, and of course the awesome ride it gives!!? Just think that #1, or top 5 in the world is a bit of a stretch? Either way with Fury 325 debuting next year, I can't see MF holding that spot much longer.
I love Magnum XL 200 as well and it had a great run in the 90's, but it too is overrated and the delusional GTA's are really setting new riders up for an OUCH of a disappointment! My Point is that only stubborn fans of Magnum XL 200 still consider the coaster to be in their top 10! I love Magnum but I'm gonna be real when I say it's not even in my top 50, and has no reason being in anybody else's either!
This next one isn't touted too high among rankings but second-for-second is my favorite ride on the planet, and that ride is Top Thrill Dragster! It's overrated to me for different reasons, and those reasons are it's JUGGERNAUT status/importance to Cedar Point's lineup when compared to it's low 1,000 riders per hour capacity, and most of all it's long list of mechanical issues that haunt the ride on a daily basis! Maybe it's just my luck, but this damn thing broke down the last 3 times I've ridden it! It never closed down, but it would shut down for 25-30 minutes at a time for maintenance, which just kills it for me as it turns into a 2-hour round-trip for a 17 second ride!
Another is Phantom's Revenge which started out ordinary with a great 2nd drop, then topped off by a totally ordinary conclusion! Overall fun, but very average!
Sorry to my home and favorite park Cedar Point for my rant on a few of your coasters, but I'm just being honest as an enthusiast!