Ed Reed was fantastic last year but he was still a rookie. I think it is a bit premature to crown him the best SS in the league. The same can be said of Roy Williams at FS. Is Anquan Boldin suddenly the best WR in the league after his rookie season? He went to the Pro Bowl too.
Personally, I like Corey Chavous and Adam Archuletta as young SS's that have proven themselves over a few seasons.