We just confirmed that Terramorphous is significantly harder on True Vault Hunter Mode, however his drops appeared to be pretty much identical. (For reference he has significantly less health and summons less tentacles). Roughly the same number of each rarity of item, still level 50 in both modes.
Aside from completing the mission for that playthrough, is there any benefit to killing Terra in TVHM? Some people say "TVHM gives better loot" as "common wisdom" that THVM is better, but TVHM really means "loot is higher level". So, considering gear level is the same, is there any reason not to fight the easier Normal Mode Terramorphous, other than for challenge?