Kevin Nash. He's better on the mic and was part of one of the greatest angles of all time, the NWO. I also enjoyed most all of his stuff in the WWF in the 90's. He was boring in 2002/2003, but I did enjoy his feud with Triple H last year, though.
Kane was awesome for awhile and has been in some good matches, but he's also been in probably more individual embarrassing angles (including one of the silliest of all time, Katie Vick) than anyone else. Far more than Nash, certainly.