What I find quite interesting is that in the propaganda shots of FFV in Japan, they have the main character's name written as "Butz", yet Square-Enix's official translation is "Bartz".
To be honest, I'm not too fond of either name; they're not very attractive. My question is, why not play around with the name to try and get some other spellings from it, yet still maintain most of what you want it to sound like?
My suggestions:
Bartsch - Kind of German-sounding, but I think this spelling's worse...
Bertz - Not bad...
Yeah, I know that list is really short and kind of lame, so I was wondering what some of your ideas would be. Be creative! Have fun!