Re: Casper, Caspar, Kaspar?
I like plain old Casper. It's the most natural spelling for me, and Kaspar and Caspar also make me unsure if I should alter the pronunciation to "kas-PAR" as opposed to "KASS-per"... saying "kas-PAR" makes me feel a little silly and phony. But I like all of them, in general.
Casper Lewis is pretty amazing.