Blue
Ravenous Bugblatter Beast of Traal
One huge difference is that dual wielding can be finesse weapons. DEX is the all-star ability score, while STR is the red-headed step-child.
But really, who bothers to spend the feat on Dual Wielding? If you want to do it, such as a rogue who wants more chances to land a hit to deliver SA more reliably, you can do it without a feat. All the feat does is take away the "light" requirements, so about +1 damage per hit from increased damage die, and the +1 AC. As feats go, it doesn't give you a lot over the base.
But really, who bothers to spend the feat on Dual Wielding? If you want to do it, such as a rogue who wants more chances to land a hit to deliver SA more reliably, you can do it without a feat. All the feat does is take away the "light" requirements, so about +1 damage per hit from increased damage die, and the +1 AC. As feats go, it doesn't give you a lot over the base.