"Favorite underrated pokemon?"

Hey guys, there are a lot of underrated pokemon or simply unknown ones and i'm curious to see if some of you guys have favorite "underrated" pokemon (in your opinion obviously).For me personally its thundurus, reason being is because it was so epic to see a pokemon who causes lightning appear on front of you in the game (white) then having to hunt him down was epic. For some reason people hate him for his design, personally think its awesome (prefer therian tho) via /r/pokemon http://bit.ly/2sAPV1h