wothout a doubt,it has to be the 4 HORSEMEN,any and all incarnations.They were the originators of the faction,and its like the old saying goes...often imitated,BUT NEVER DUPLICATED!!

After that I'd have to say the original DX(not this "goody-goody" be it ever so humble version),then Evolution and the nWo(its the only time I ever liked Hogan!)