Doom sucks arse.
Magneto is quite possibly the best villain ever.
Mongul is better than Thanos because he wiped out a whole city and Thanos is just a weak arse Darkseid clone anyway.
Black Manta is gay and has a gay costume.
Fuck it, that could be said of any Aquaman villain.
Joker is overexposed and overrated.
Spiderman villains tend to be shit, as do Flash villains.