ok, im no pro, but heres what i THiNK
Macs and PC's both have great graphics, but a mac CPU is OPTOMIZED for graphics(or so i hear) I also heard from a tecaher that a 8ooMhZ mac is equivalent to a 1GhZ PC.. dont know if its true? Mac OSX is Fancy if u like that crap, but there IS LESS SOFTWARE FOR MACS. People say there are NO games for macs, not true, just not as much. PC opposers say that they are unstable and krap, but XP seems to work fine.(finaly a OS that works, from MS) lol... But then again it IS MS so u have 2 restart every other time jk lol anways that was off suject, Macs are based on UNIX, probly much more stable thana PC, if ur a PC user and u say macs suck and uve never tried one, think again. If ur a mac user and dont look at PC's cuz their too "ugly" think again also.
Pc's have more compatible hardware, are easier to fix, and HAVE MORE SOFTWARE However they are less stable in general, less reliable, and secure.(ms security is a joke)lol
Macs have "less compatible hardware" if u know what i mean, are more stable, harder to hack, and does not have AS MUCH software as a PC does.
IF you want a truly awesome computer and OS get a Mac and RUN LINUX ON IT! then u can also have WINE and run lots of win apps