AWD is better for big power, theres no doubting that. But you put a FWD 260Hp GTI against a 260Hp Golf R and the GTI will be better. The biggest improvement AWD will bring to a driver is it means they dont need to have any form of throttle control. Just use it as an on/off switch and let the haldex soak up the traction.
I personally like Haldex, and would love it for my next car, but i dont think its better for driving.