Toilet-bound Hanako-kun OP - No.7 vs.
No Game No Life OP1 - This game
Normally, I'd prefer the type of music similar to No7, but that song specifically wasn't good enough to wow me, not that it was bad or anything. No Life has a much more memorable and pleasant vocal to my ears, with decent accompanying instruments, so it rightfully has my vote.
Neon Genesis Evangelion OP - Zankoku na Tenshi no Thesis vs. Violet Evergarden OP - Sincerely
It's not just nostalgia, but Zankoku has slightly more memorable instruments and lyrics.
Mob Psycho 100 II OP - 99.9 vs.
The Melancholy of Haruhi Suzumiya Season 2 OP - Super Driver
Slam Dunk OP1 - Kimi ga Suki da to Sakebitai vs.
Gintama': Enchousen OP3 - Sakura Mitsutsuki
Not impressed much by either one, but I think Gintama is more exciting and entertaining to my ears.
Amagi Brilliant Park OP - Extra Magic Hour vs. Cowboy Bebop OP - Tank!
Uh... Not a big fan of Extra, but definitely prefer it over Tank.
The Saga of Tanya the Evil OP - JINGO JUNGLE vs.
Noragami Aragoto OP - Kyouran Hey Kids!!
I prefer the vocal and music beats of the latter.
BNA OP - Ready to vs.
Baccano! OP - Gun's & Roses
Ugh... A boring match for me... Guess I'll give Roses the vote for having at least somewhat of a unique presentation style.
Ground Control to Psychoelectric Girl OP - Os-Uchuujin vs. Code Geass: Lelouch of the Rebellion OP1 - Colors
Oh ho... Now this is a tough match! I think both songs are great! One has a slight melancholic feel, one is full of excitement. Hm... Both have good vocal, too. I think I'll vote for Uchuujin, it feels a little more unique than Colors. Can't go wrong with either one, though.
I see no reason why we'd need two days for just 4 match-ups, unless you feel like dragging this out for whatever reason.
Fate/stay night: Unlimited Blade Works 2nd Season OP - Brave Shine vs. Noragami Aragoto OP - Kyouran Hey Kids!!
6 – 8
Dragon Ball Z Kai OP - Dragon Soul vs. BNA OP - Ready to
2 – 12
Tesagure! Bukatsumono OP - Stand Up!!!! vs. Cowboy Bebop OP - Tank
4 – 9
Wow! Hazzac-kun seems to be doing so well with his submissions! This calls for a celebration!