The 1st set is better for trash while the 2nd is slightly better for bosses. In general, it seems like you're pursuing Block Rating too much. I'd try to create a 3rd set that focuses less on block and more on Dodge.
All that said, you're not listing your Armor or Stamina which are both massive factors towards how your gear yourself. In fact, they're probably the 2 most important things to talk about. You're also missing Expertise in your sets too which for a Warrior is just better than Hit.