Kane 2003 onwards? Since when was he a "jobber" then? Really everything regarding unmasked Kane from 03-Wrestlemania 04 was great.
Prior to around late 2003, Kane was an indestructible monster, it would take the Undertaker 4 tombstones to finish him. Around mid-2003, he became Eric Bischoff's punishing agent. Whenever Bischoff was mad at someone, he would set them up with a match against Kane. Once he buried the Undertaker alive, he started to win less and less often. In 2004, he gained some victories over Matt Hardy (who at the time was also a jobber) but between 2004 and 2009, he lost more often than he won.
In 2004, he lost to Gene Snitsky, Randy Orton, Shawn Michaels, Chris Jericho, Chris Benoit.
After 2005, things got worse as in 2006 he lost to MVP, Umaga, Mr. Kennedy, Randy Orton, Fake Kane, Lance Cade, Rey Mysterio, Triple H and Chris Masters.
In 2007 he lost to Batista, Big Daddy V, Finlay, Khali, MVP, King Booker a numerous times.
After 2004, his win percentage is around 50% and he mostly beat jobbers that were lower than him in the pecking order.
When Kane was first introduced, he squashed his opponents like 7-8 weeks in a row and it took the Undertaker multiple finishers to win the match at WM. Even after that, he was the most destructive force in the company. During and after Ruthless Aggression era, he started to job to a variety of people.