OK excellent info. Much obliged!I'd go FTW3 but I might be a bit biased!
The Suprim is supposed to run a bit quieter
Slighly higher clock out of the box
The FTW3 is slimmer if space is an issue
Higher max wattage (450 watts compared to I think 420)
The out of the box clock speed is irrelevant if you are going to adjust them anyway. The FTW3 was supposed to be around 1800mhz, but I'm running mine on an undervolt at 2010 mhz. I've heard of people getting coil whine on the Strix by the way, but not on the Suprim or FTW3.