Benoit was a helluva wrestler, but really only came into his own character wise in the WWE, so that only gives him a 3-4 year run as a complete wrestler, I don't see how he rates higher than many of these top 20 guys.
I loved Benoit the wrestler, and think that the murder suicide should have no impact on how his career is judged, but I agree, he is not a top place wrestler. To rank him above the likes of Eddie, Jericho, Bret, Sting and Undertaker etc, is wrong on so many levels. That said, I cant see who else would fill that elusive spot. I really cant think of any big names that are missing from the list!