@sjgadsby

Are you judging this from an objective view point or rather by the fact that microsoft is X86 based and further development of ARM technology would give Linux a fair chance regarding OS share in a world dominated by microsoft?

Also the question to answer is in fact RISC(ARM) vs. CISC(x86) if I'm right?

By my readings so far it is obvious CISC got a great head start because of the early adoption of X86 and cheaper manufacturing and especially cheaper manufacturing line upgrades.

Regarding performance it's really hard to draw the line, this is a little something I found: http://www.pocketables.net/2008/10/mid-battle-aigo.html