ACG - Not great subs, though some of their work is okay. Translations is the only part that I consider okay, by the way.
Darksoul-Fansubs - Do not want. They are speed, and offer crap translations with crap karaoke and typesetting. Just don't.
Destiny & Yuurisan-Subs & Yibis - Dunno about Destiny and Yibis, but Yuurisan-Subs is pretty decent. Better than ACG in my opinion.
Elricest - Never heard of them. I think they're new.
KyouNoSubs & Tomodachi - Kyou no Subs is a speedsub group. Their work is okay. Not good, not bad, but good for speedsub standards. On the other hand, Tomodachi is a very decent group. I dunno how this will turn out.
AasaSubs - No thanks. They're speed, and definitely not as good as Kyou no Subs.
gSS - gg and BSS. Great work will be made here.
AniYoshi - Good typesetting effects, karaoke, etc. Good translations, but as Zalis stated earlier, sometimes a bit too literal.
Ayako - Good typesetting, karaoke, translations. This group is one of the better groups subbing this, if you are looking at it overall.
Your-Mom - No.
Himatsubushi - Most of the guys in this group are in Ayako, or something along those lines. But they're speed subs. Their translations are decent, but the releases themselves aren't good.
Taka Fansubs - Take other groups translations, edit them, put it into a container and release. That's what Taka Fansubs do.
Fork - Never heard of them.