Opeth - I don't have as high an opinion of them as I used to, so acknowledge their flaws while still enjoying most of their music.
Gojira - A lot of their stuff is boring, and I rarely listen to them anymore, let alone full albums. But when I'm in the mood, I can really enjoy their riff salads.
Symphony X - Completely undeserved, albums like V are absolute masterpieces
Meshuggah - I don't care what anyone else says, Meshuggah is fucking awesome. Yes, some of their stuff is meh and listening to them for a long time can get tedious. But they really fit every mood and are a classic go-to band when I don't know what to listen to.
Novembre - Alright, they're pretty gay sometimes, but whenever I'm in a romantic mood, they're pretty damn good.
Nile - Everything from Annihilation onward has been awesome. Their earlier stuff is kinda boring, somewhat due to the flat production.
Dream Theater - Prob my favorite band back in elementary school. I rarely listen to them now, but I still love their pre-2000 material.