I'll take Halffish's legs over Helm's. The lighting on OP's matches the style and composition of the piece more. Helm's legs also look too chunky, in my opinion. Most Japanese girls I've seen are very slender. =)
Also, am I imagining it, or are the knees on Helm's edit about four inches lower than they should be? The lower legs look noticeably shorter than the upper legs in the edit, in my opinion...PPP's edit might be a bit more accurate, but I'm still liking the original the most, for the general feel of it...
I do like Helm's AA work, though. The piece could do with a bit of polish, though it looks great as-is!
Anyway, this piece is pretty gorgeous overall. Welcome (back?) to the forums, Halffish!