Its a matter of opinion I'd guess. I dual wielded until about 75, then switched to fencing. But the timing on it drove me nutz. And I really didn't see much more of a survivability aspect to it so /shrug.
I'd say go DW and just kill shit before it kills you. I think whether you DW or use the One hander spec, if you time your stuns and walk the plank right, most things die before you even take a blow.
There's not really a whole lot more to say about DWing vs 1h WIS line.
Some time ago the WIS line was top DPS but that's been changed for some time now.
As a level 30 I don't know what high dmg/delay weapon options you have.. there weren't a whole lot available when I was 30. But even if you just use mastercrafted weapons DWing will still be better.