The HAF has 3 fans:
1 x 120mm rear fan
1 x 200mm Red LED front fan
1 x 200mm top fan
Includes a toolless design, side mounted SATA drives, and comes with a pre-cut hole in the motherboard tray along with a guide for installing standoffs.
The DF-35 comes with 4 fans:
1 x rear white 120mm TwoCool fans with white LED
2 x front variable-speed 120mm LED fans with white LED
1 x top 140mm TwoCool fan
It also includes a motherboard cutout for an aftermarket heatsink and a window, but I am not sure about a guide for standoffs. No toolless design or side mounted hard drive cage.
They both have room for your graphics cards, and will supply sufficient heating.
If I were you, I would go with the HAF 922, due to the extra time saving features, looks, and fans.
Chris