The opening to Gantz is lit, but I hate the show.
The opening for Jojo's Bizarre Adventure Stardust Crusaders: Egypt arc
The opening from Higurashi. Hate the show, but the opening is awesome.
Psycho Pass and Tokyo Ghoul probably, i love those openings but i just never bothered to wath the animes
For me, it's that song by iRis (I couldn't find the star in my keyboard to make the name as stylized) for the anime adaptation for the school water polo comedy "Hantsu x Trash". Trust me, the manga version is way better than the anime version for the Ecchi comedy.
I didn't care much for the anime, but I thought the ED was catchy. That was basically the only good thing in it. Oh, and Shizuka Itou being the Seiyuu for the "sexy teacher" deserves some "cookie points" as well.