Walmart is rolling with their excusives, that's for sure. They picked a good time o get them out on shelves, in stark contrast to Target, who apprently have no interest in geting their 2 exclusive Clone Wars BP's out in stores in time for the seasonal shopping surge. (Even though we have seen packaged pics of both sets since SDCC in JULY!!!)
I would definitely say Walmart and TRU are the only stores worth checking right now. TRU is the only retail outlet to stock the new wave of Battle Packs for example (Endor, Rishi Moon, Gelagrub).
I have yet to see Target's exclusive Big Wing TIE fighter now that I think about it. So that's 3 exclusives they have stuck up their collective arses for no apparent reason.