What version of JAM Project do you like best?  

the old version 2000

ichiro mizuki
hironobu kageyama
rica matsumoto
masaaki endoh
eizo sakamoto

or the 2003 version

hironobu kageyama
rica matsumoto
masaaki endoh
hiroshi kitadani
masami okui
yoshiki fukuyama

I think I like old JAM. I also liked it when Kitadani joined when Aniki and Eizo were still part JAM Project at the moment. Because Nageki no Rosario rocks.

I prefer to classify them this way:

Version 1: Mizuki Ichiro, Kageyama Hironobu, Matsumoto Rica, Sakamoto Eizou and Endoh Masaaki

Version 1.5: Kageyama Hironobu, Matsumoto Rica, Sakamoto Eizou, Endoh Masaaki and Kitadani Hiroshi

(Interestingly, although aniki was seen in a JAM group photo with Kitadani, he's not involved in Nageki no Rozario, as far as I know)

Version 2: Kageyama Hironobu, Matsumoto Rica, Endoh Masaaki, Kitadani Hiroshi, Okui Masami and Fukuyama Yoshiki

Version 2.5/3 (?): Kageyama Hironobu, Matsumoto Rica, Endoh Masaaki, Kitadani Hiroshi, Okui Masami, Fukuyama Yoshiki and Ricardo Cruz

While Mizuki's presence and Sakamoto's unique high pitched vocals lend some weight to JAM Project, It was the addition of Okui and Fukuyama (and possibly Kitadani) that breathes new life into JAM Project (The Gate of the Hell, anyone?). It can also be noted that it was only after Mizuki left the group that Kageyama play a much more pro-active role in composing the lyrics and music of JAM songs, and with the rest of the members being invloved one by one, the music of JAM reach a new high.

Personally, I'm more inclined towards the new JAM, and I sure hope they will keep evolving by including more anison singers.

I like all versions of the group, I think version 2/2.5 is the best, but I wish that Eizo Sakamoto could participate on a new song like Ichiro Mizuki on Strombringer.

I like both 1 and 2.5.

They started off awesome with aniki and Eizo, lost it for a while, but now they're awesome again.

for me is the 1 and 1.5 !!!

I prefer 2003 version (with Ricardo too) because I don't like very much Sakamoto (his voice)

But I love Mizuki-san.