Of course MorphOS. It is the most polished and versatile OS. AROS holds quite some potential but isn't as polished as MorphOS.
@ Franko
You change your opinion about MorphOS quite often. I'd suggest to read
http://via.i-networx.de/wim.htm again or - even better - check out yourself the current version on a powerful G4. Or have a pint, or two - Cheers!
