Yeah, I get what you mean. I'm in a way similar, instead I try to seek out difference as opposed to melody. So to use your CC/In Flames comparison, I'd rather listen to In Flames (Jester Race ftw), but I'd choose Cynic over either of those.
Had to look up your two bands, pretty good stuff though. I choose Chthonic, because I liked the way that they mixed in traditional Taiwanese sounds and vocals into their songs.
Next up: Atheist vs Meshuggah