When I used dual wield I tried out both of the skills, and the increase in radius does not really matter as you are already in melee range. Even if the stamina return isn't major, I think it's best to morph it into Whirling Blades. Doesn't look as cool as the other though.
PlagueMonk wrote: »I personally use WB because of the stamina return which, with the shift to stamina builds in 1.6 WILL be a major factor since you will be burning through stamina for almost everything now.
I also can't speak for ST but I can cast out multiple WB in secs with animation cancelling.
Too bad we can't have both morphs available for different builds.