Tekken and Calibur don't quite look offensively weird, but the actual quality of both series' art direction has taken a serious nosedive in the more recent titles. On top of all the freeform customs and Soul Calibur's world-breaking with Star Wars looking absolutely hideous. About SC2 era Soul Calibur looked amazing.
KOF13 is in that iffy place where it's kind of crossed the threshold into a weird-to-a-westerner anime feel, but doesn't go batshit insane with it - it's too reserved, as odd as it sounds. I see better responses to Faust who makes no damn sense whatsoever than to KOF13, visually, because Faust is simply mad enough to entertain.
MK9 and Injustice just look straight ass as far as I'm concerned. Not in the "too weird" way, though, the animation and modeling is just atrocious. Lessen up the grimdork a bit and just execute the concepts well and you could have something great on your hands.
The best part about SF4 are how many stage backgrounds just look like paintings, they really have a nice human-made feel to them. Overpass and Festival at the Old Temple especially are goddamn gorgeous. The animation also has an excellent sense of weight and pacing for the most part, and the game manages to be somewhat flashy while still being clean. Better models and it'd be just drop-dead gorgeous.
Yup. It's the same vicious circle that has left most anime to be insular, memetic junk nowadays.
Apart from the ADHD fireworks show where you can't tell wtf is going on?