Hi there guys

In the market for a new road bike after mine got rear ended by a car (a trusty old Cannondale CAAD 4) . Due to some back inflexibility on my part ( I have mild scoliosis) I dont like spending lots of time aggressive position and am looking for something more upright but that can still be reasonably racy and exciting to ride. this bike might end up pulling double duty as a tri bike ( dont have much space in the house for many bikes.)

I have looked at some options which are:
Bianchi infinto (in celeste, of course!)
Look 566
Giant Defy 1/0
scott CR 1
eddy mercxx EMX3 ( an outside choice as its mega expensive in my area and mega ugly imho)

geometric wise all these bikes fit very similarly, would love to hear some thoughts and opinions. anyone own any of these? looks? handling?

note: I know bikes like the cervelo RS and specialized roubaix shld be considered, but they are too expensive in my area for me. my local sponsor carries look, bianchi, scott and eddy mercxx, which is why I might be able to get them cheaper.)