ZODIACFML,
Uh, first of all intake fans make sense for many PC's... also the Corsair One has an intake fan right on the top.
The air flow is to suck the air in the TOP and then it gets forced out the two radiators.
The Apple design is way better as it uses a core heatsink to mount stuff too and the intake fan is on the BOTTOM which forces air to flow up through the heatsink (that has CPU and 2xGPU mounted) and just goes out the top like a chimney.
Having TWO radiators with pumps seems a little wasteful for the Corsair One. I guess maybe that's what they are stuck with if they mostly use off-the-shelf parts.
I still don't understand why they didn't have the intake fan on the BOTTOM... probably the motherboard needed to be there for the connections to be more convenient and that would have gotten in the way of the fan.