Arencibia's AAA success was likely largely attributed to playing in the Pacific Coast League where baseballs go to die. The ballparks are all bandboxes, and there are a lot of parks at elevation where breaking balls really don't move the way that they should.
Kirk's WORST strikeout rate in his limited minor league career was 11.2%, while Arencibia's BEST strikeout rate in the minors was 17.6%. There is really nothing in common with how these two players come about their success at the plate. Kirk has typically walked more than he has struck out so far, the guy has a pretty amazing eye at the plate. I'll agree it's too early to declare Kirk a 100% certain future star, but he certainly has the necessary ingredients to become one.