If 15 Hardcore players made new characters in WoW today, they'll beat hardmode tier 1 Cataclysm raiding in WoW in less then 3 days from the second they make their characters. Now, compare to SW:TORs tier 1.
So yea, from my view SW:TOR looks harder. They haven't even finnished Tier 1 raiding yet.
(Posting about the guild who've done 4/5 bosses in EV nightmare mode)