screen size - cx70, 17"
screen resolution - y580, FHD
screen matte - cx70
keyboard - cx70 (my personal preference, it's strange to say other laptop have better keyboard than Lenovo on budget line
touchpad - draw (personal opinion). cx70 button is stiff, y580 - hard to click and drag due to design.
speaker / sound - draw (personal opinion). y580 has JBL, but you have to listen to cx70 to believe the quality (it max volume is louder than y580. while still staying crisp and clear). But you always better off getting a proper desktop speakers system.
CPU - Y580
GPU - Y580 by miles
Heat - draw, both are hot under load. But I heard (no personal experience) cx70 could under-throttle under load (not good for gaming).

For gaming, Y580. I just get a matte screen protector to reduce the glare.