Image stabilization; who has the best?

That being the case, you should consider that with IBS, all your lenses are stabilized, whereas with Canon/Nikon, only certain lenses will be stabilized, and they will cost more and be heavier.  Some people claim in lens is better than in body, but I'm not convinced - I can get good results at 200mm (my longest lens) at 1/8s with my Pentax K-7.  Once you get much longer that you're probably better off using a tripod anyway, imo.