Tommy Stinson has been in the "new" band for the longest time (well apart from Dizzy, who's stayed since the UYI days). And he's one of the coolest guys too.
Like his solo record, like his bass playing, like his current tour videos...
2nd: Dizzy. Good key/piano player and has been loyal since 1990.
Ron Bumblefoot is a nice bloke. Very fan-friendly.
Dj Ashba is a good guitarist and cool bloke as well.
To be honest I don't know all that much about Richard & Frank & Pitman (who seem to keep a "lower profile" compared to above guys). But I think they're good.