Well,I always have the best sig,hands down.
The cool thing here is that these are all done for free by these guys to help their fellow FF bruthas out...it helps distinguish the individual and adds personality to his/her posts.
Off the hip I will say that Dayja and Zimm do good work and Leber has been doing good things lately as well.
Deft and Mercer have done some nice ones and Tiki is learning.
However,the best I've seen were by moloko9...he hasn't been around for quite awhile,but his were very good.