Firstly, they are all overpriced, when compared to other new bikes out there.
Out of the four, the Cambridge models get my vote, mainly for their somewhat practical, utilitarian approach (internally-geared hubs, sidepull calipers, fenders, racks, comfortable-looking riding positions) without too many overly-complex, expensive and harder to maintain BS features like STI and disc brakes that the average leisure cyclist or commuter who rides somewhere between 1-10km doesn't need.
The Conoisseur, while looking nice, appears to be an overpriced version of something that all of us here at BF regularly pick for a tenth of the price. The parts appear to be mediocre at best for the price, there are no eyelets to be seen and what is with the downtube shifters being mounted right near the headtube? Are they trying to encourage finger dismemberment?
The track bike, well, like the Conoisseur is overpriced for the component spec and with the very hipster look to it, will be probably be about as popular as a Leyland P76 in about two years' time. NYC Bike Snob PistaDex anyone?