The video for cast B's Katta Mon Gachi Ya is out on Youtube!!
http://www.youtube.com/watch?v=6i1ap51adEM

Here's what I think-

-The cast A Gin is more in character. Cast B Gin had a very forced voice D:

-I think cast B was starting to lose energy in the end...

- I'm not being biased, I really do love Satopii and Bishin-kun both. But I think Satopii has a better voice. And I think Bishin has a better range. Now that I think about it, I think Bishin has a Shougo-ish voice. (Pfft HAHAHAHAHAAA!!) And Satopii has a cuter drawl when he says "Ma sha nai suwa" or w/e. But the way Bishin says it makes it radiate cockiness and energy. Hmm, at the same time it's Zaizen-ish and yet not so much Zaizen-ish.

- Sasaki-sama is so in character for Shiraishi compared to Kyousuke-sama. It's really cool to watch his calm expressions. Although that causes him to move in a more calmer fashion. And he has a crazy, awesome voice. XD *replays 'Ecstasy' part*

- Kouki-kun or Takuya-sama? I dunno, I think Takuya has a drawl in his voice that when he says "No speed, no life" is just awesome. Kouki has a, how would you say, more powerful voice. Yeah that's it... Kouki says "No speed, no life" a little well...not Kenya-like. Giddier then how Kenya would say it. Although he has a good range. No drawl like Takuya, but a better range.

-Iizumi is insanely Koharu-like. Period.

-In the video Kawada-kun made for the homepage. People were all like, "Oh, totally not Kin-chan worthy" I think it was just the way the video was shot. He really is not bad. Very wild and loud.

-Makoto and Hirano are hard to judge. They are pretty much on par.

-Ryuuko and Masashi are nearly on par. But I think Masashi has a better voice.

-When Bishin pretended to nearly fall over when he hit himself with his racket was pretty funny and cute.

-I've come to the conclusion that:
Cast A is more in character.
Cast B is goofier. C'mon, Zaizen wouldn't hit himself with a racket. And they lacketh thy energy.

Tell me what you think,
Kaori
Ma sha nai suwa
No speed, no life

 Edit: I keep rewatching Bishin's singing part. He's really smiley and cute when he sings that ya know? It makes me smile so much that my face hurts...