Been on a break from the border lately but this is an interesting debate, I'd give a generous 6. It's all been said he can definitely sing but he lacks the feeling and expression and also the uniqueness that Tim, Joe and of course don and glenn have. Those guys could bring subtle nuances to different songs and many different styles but with Felder it is a tad bit generic but I think during his show its fine as long as it doesn't get in the way of his guitar playing in which he is a solid 10.