^Thanks for posting those videos, YKT!

My thoughts after spending about an hour watching (and rewatching/spazzing over some):
Team A: OMG I CAN'T EVEN. The video is breathtaking. The girls are gorgeous. The costumes are just wow. The song won me over the first time it was leaked. I love the whole geisha
and bitchy catfights concept. I wasn't expecting this so it's definitely a pleasant surprise. I'm still trying to figure out what exactly happened in the PV. Was Mayuyu forced to retire because of some conspiracy within the geisha house? Anyway, my heart skipped a beat when Mayuyu first appeared in the video. So elegantly glorious

Then my heart almost stopped completely when the doors slid open to reveal a regal Mariko-sama at 1:40. Team A seriously gets the best videos!
Team K: The first few seconds made me think of Show Fight! due to its gritty nature. The song is nice but I was hoping for a harder sound to match the punk-rock feel of the video. My favourite parts of the song are actually the verses which are strangely catchier than the chorus. Overall, decent PV and song but lacks that oomph to blow my mind away.
Team B: Find Team A too sophisticated? Team K too punk? Well, there's always Team B to bring back the good ol' high school vibes! However, I always think that Team B gets cheated out of "special" or "edgier" PVs that Team A and Team K enjoy. Even after the reshuffle, they are still stuck with the cute girls-next-door image. The song is nice but forgettable. I like the grey blazer and red checkered skirt combo though and the hats parade is freaking adorable.
Gingham Check - Takahashi Eiki ver.: If I were drinking water when I pressed 'play' on this video, I would have spit all over my monitor. Mayuyu being the main focus instead of Yuko?! I did a double take to make sure my eyes weren't playing tricks on me. *inner Mayuyu fan celebrates* But I so need subs to understand what is going on. Initially, Mayuyu seems bulimic/pregnant/struck by terminal illness then she's suddenly all smiles and sunny after the surprise prepared by the other girls. And at the very end, the focus shifts to Yuko. Dafuq?

Until I watch this with subs, I can't form a proper impression

It still doesn't beat the original version in terms of awesomeness though.