If you get the Team edition (OMR frameset) Orca, it will be an upgrade. It would be like going from the Evo to the Hi-Mod...lighter, stiffer, more responsive. That may be something that you'd like, it may not.

The R3 is a really nice bike, as well. I picked one up a month or so ago (really wanted disc brakes, and the Orca is just a tad too small for me).
It's not as responsive as the Orca, initially, but it is very smooth and maintains speed nicely. Between it and the Orca, it's really tough for me to say which one I prefer (if you take the disc brakes out of the equation)


But, I guess the most important question is why are you wanting a new bike? What do you not like about your SuperSix?
Given your $3k-ish (I'm assuming) budget, maybe it would be best just to upgrade your current bike? A nice set of wheels, and a new groupset would provide a noticeable different