Berdych is honest, but he's also kinda a dick
The Spaniards and Italians tend to have personalities, with Nadal as exception.
Tipsarevic has one. Davydenko can be really funny.
Hewitt still does when he plays
The top 2 levels of my sig in general (take out Ljubicic, Hanescu and Ferrero)
There are some newish guys with absolutely 0 emotion: Raonic, del Potro, Kudla, Sock
As much as I hate Tomic his douchebaggery may be good for the game