D# Digital Press (newly renamed site) have just posted some samples from the Fuji MX2700, MX2900Z and MX1500 side-by-side. It's worth noting that the MX2900Z and MX1500 are pre-production cameras.

View the samples here

(Not to scale!)

I personally wasn't that impressed by the MX2900Z performance, but then this is a pre-production camera and the samples out of the Nikon 950 weren't that impressive until it turned production (firmware bug fixes etc.)