Well, I was really looking forward to Dalius's "Seige Perilous X" because I've never played SP on OSI before, and it seemed different (read: a challenge?) but then again it's Dalius and last I heard he hadn't done anything with it at all
I was also really excited about Novus Opiate, when it first changed it's goal to a fully osi clone pre UO:R shard. Then I remembered who the admin was, and well, scratch that idea. Though I think the playerbase you'd attract with this would all be hardcore PvP'ers though I can't see what the big deal with pre UO:R pvp is in the first place
AOS, causes violent outbursts from me
Best bet would be Pub16 (minus a few things, namely powerscrolls) I mean it's got enough new things (trammy things?) to keep non pvp players happy, pvp is pretty decent so there shouldn't be a problem with that... and I feel like I'm describing the other shard I play word-for-word so I'll stop here