Lets not kid ourselves, nobody here is that cool.
I guess I'm the only one who always thought Fonzie (ergo Henry Winkler) was a dork. Seriously, I think they miscast that whole role. Just never took Winkler to be tough, attractive, or cool.
When I watched the show at the time of broadcast (as a kid) I thought that was the point.
The Fonz was none of the things he's character was associated with but had those attributes pinned to him by a mixture of force of will, cult of personality and percussive maintenance skills.
That said he was a nice guy.