A couple of these might ruffle feathers, but it’s just my opinions.
Symphony X - Granted, Divine Wings is a decent album, but it still never gripped me the way V, The Odyssey, and Paradise Lost did.
Skillet - I don’t expect this will kick up a lot of discussion given their subject material and I never see them mentioned here. But a look into their past revealed to me their first four albums were industrial shite, and it wasn’t until Collide/Comatose that they became the guitar-oriented, riff driven band they are today.
Threshold - Psychedelicatessen was decent, and Clone was a good transition into the Mac era, but Damien’s delivery on Wounded Land and Extinct Instinct is just something I still can’t tolerate. It isn’t until we get to Hypothetical onward that each release is solid to stellar (except maybe For the Journey, but I enjoy even that one too).