Yeah, he sounds like he's retarded. Peyton doesn't have quite the twang Eli and Archie have, though he doesn't sound like a genius, either.
Leaf's problems were ultimately his immaturity and his injury problems, neither of which scouts have labeled concerns for Eli(even with the Chargers/Giants thing), but if intangibles were what San Diego wanted, they definitely got the right guy in giving him up for Phillip Rivers.
J.P Losman, on the other hand, reminds me a lot of Ryan Leaf. Bad mechanics, childish, but mega talented. He can't be a complete idiot, though, since Tulane isn't the easiest school in the world to get in to....