I'm currently fury at 89, two
http://www.wowhead.com/item=86523 with Windsong on both and a total ilvl of 439. Currently at hit & exp cap with 15% crit and 18% mastery. Nothing in my gear is special in any way apart from the weapons, everything but the weapons and my Quilen Statuette is acquired from quests and dungeons.
So to get to the issue at hand, I'm not finding Fury bad
at all. I'm ripping enemies to pieces, doing 50k sustained DPS in dungeons and perform well in PvP, even though I barely have any PvP experience, and my avarage DPS when questing is somewhere around 40-50k aswell. I haven't compared it to Arms, but I find it hard to believe that Arms would outperform Fury for me.