I just bought the Roubaix 1.0 you are looking at. I posted pictures of it a couple days ago. I am 6'2", about 235 now. The wheels on the R-670 are better. I bought the Fuji because I think I will get better resell value out of it when I upgrade, I wanted SRAM components, and I think the Fuji looks better. I have ordered wheels to replace the stock wheels.
Do you plan on doing any hills or mountains? I got them to swap out the crank for a compact for the mountains around here.
So far, I have been very happy with the bike. I think either one would be a good choice. Buy the one that fits and feels the best riding, if they are the same buy the one you think looks the best.