"Bloom". Dear god, "Bloom". Prospect 1 sinks to the bottom of the sea, where his oxygen is removed and he's forced to dance by Queen Sea, the manifestation of the sea, gets his oxygen back, and floats back to the surface. Oh, and it may or may not have been All Just a Dream.
Broken Base: Primarily between the fans of their older, more uniformly metalcore sound on their eponymous debut album and The Silent Circus and the fans of the more progressive and experimental Colors, The Great Misdirect, Hypersleep Dialogues EP, and Future Sequence. Alaska serves as a dividing line and is generally well-liked by both groups.
Even the more prog-oriented section of the fanbase seems broken on one particular album: The Great Misdirect. Depending on who you ask, it's either one of their best albums or one of their worst.
Future Sequence is also fairly polarizing. It's either an excellent comeback from Hypersleep Dialogues and their best album next to Colors, or it's a collection of lazy, disjointed bits and pieces that they just slapped together and called songs and the point where the band truly demonstrated that they ran out of good ideas a long time ago.
Their decision to only play songs from Colors onwards live also brought this about. Some people just saw it as a mere formality based on how little they've been playing earlier material to begin with, understood their reasoning, and had no problem with it, while others were pissed about it and saw it as a slap in the face to older fans (the band did clarify that "Selkies" wasn't going anywhere; additionally, "Mordecai" has been played at least once since then and the second half of "Backwards Marathon" has showed up on the setlist of their late 2015 US tour) but that's about it).
Fans have also been divided on the Lighter and Softer nature of Coma Ecliptic. Some think it's a great album, while others miss the death metal freakouts from previous albums.
Ear Worm: I'm floating towards the sun... The sun of nothing...
"This is all we have... when we die/It's what's left of us... when we die"
"Jet propulsion dis-en-gage...dancing towards our future...a future worth nothing...a future towards nothing..."
"My last exhale... is purple smoke.../Knees crash down on... velvet robes..."
"Focus on melody, the sounds under my eyes..."
"LIVE IN THE NAME!!! OF!!!! LIVE IN THE NAME OF THE GHOOOOOOST!!!!"
"Move the flesh over this rot-ten bone, one more day..."
"I can't heeear a thiiiing, these waaaves crash faaaaaster; I can't seeee a thiiiing, these arms grab for wonnnnnderrr..."
Epic Riff: The jam in "Disease, Injury, Madness" has an AMAZING guitar riff driving it forward.
Face of the Band: A 50/50 split between Tommy Rogers and Paul Waggoner. It really depends on who you ask.
PULL THIS ROTTING FLESH OVER THE BONE ONE LAST TIME
All of "The Ectopic Stroll".
Seasonal Rot: The Great Misdirect often seems to get this treatment from the fans. Many thought the band set the bar too high with Colors and much of the album just sounded like leftovers from the Colors sessions, not offering anything new. This sentiment also extended to Hypersleep Dialogues, and, depending on who you ask, Future Sequence is either where they catapulted themselves out of this or a further descent into it.