Not sure how keybind vs clicking is more or less fun, but as long as you're playing your role... do what you want.P.S. Lets not make this into keybind VS. clicking, I know keybinding always make you like 5% better and I just don't think its very fun.
That said, every class has a lot of abilities to place on their hotbar. Keybinding will be a LOT more efficient than clicking...
Why do you find "keybinding" to be difficult? By default the first bar is set to the number keys above the letters on a standard keyboard, anything else can be set to be modified by any key you want really... though the standards are ctrl, alt and shift.