The issue with the remake bosses is that most of them were just HP sponges, so even if they had a gimmick it always felt like everything took forever to kill regardless. I think the only bosses I remember really liking was the human opponents like the Turks and Rufus since they go down quickly but hit hard so you had to be on your toes more. The rest, I found the most variety I got was really from just switching around the party to switch out aggro and use various buff/debuffs.