x86 is terrible in general. I hate it. It's fairly universal, in that it does most things adequately, but better to have different chips that are specialised. . . So my systems use:
MIPS for basic video and image work, including 3d modelling. (SGI boxes)
ARM for portable devices and audio work. (Zaurus, RiscPC and Archimedes)
SPARC for Web and Database servers. (Sun Ultra machine)
68k for general purpose desktop, and for wearable devices. (Amigas, Wristwatch)
I only really use x86 for my windows Games computer. (Ok, game. It's FFVII.) My normal desktop PC also runs it, but that's because I already had it before I started migrating to other platforms, and it cost too much to just throw away.