Over at Bespoke Investment Group‘s site, they’ve got the top 15 performers on the S&P 500 and the bottom 15 for 2008.  Interestingly, out of the worst 15, 5 of them don’t exist anymore (Lehman, WaMu, Nat City, Bear and Circuit City). More interestingly, and a great sign of the times for 2008, was that…