Intel mobile parts have been competitive since Medfield/Clover Trail(+) which are still selling today yet still Intel is finding it tough to overcome ARM mobile incumbent lock-in inertia but it's making steady progress, more so than other ISAs like MIPS.
ARM partners have barely even started fielding actual products for servers yet.
Did not Anand test a Calxeda server that he found reasonably competitive ? Whatever happened to that/them, oh yeah no demand contrary to the fantasy you are peddling here.
There is only going to be one truly competitive ARM server design and that's only because it is basically a copy of an already successful MIPS XLPII network chip design, the multi-threaded Broadcom Vulcan but it is still years away from production as it is a FF design. Until then it's still going to be less than 1% m/s and holding ;-).