Need help choosing motherboard

[nethrezhim]

hi everyone
i want to buy a gaming system next week but i cannot choose between motherboards
i have choosen 3 motherboards so please rank them from 1 to 3 :asus p8z68-v pro and asrock z77 extreme 4 and asrock extreme6
i will overclock in future so i need a motherboard which is good in overclocking and money is my concern
and if it helps these are my systems other parts
cpu:if i buy asrock i will go with i5 3570k but if i buy asus i will buy 2500k
gpu:msi twin frozr 7870
ram:corsair 1600mhz 2x4gb

and another question: i want to buy cougar evolution case .....is it a good one?
thanks for any help

 

[o1die]

I would read this comparison and go with one of the z77 boards: http://uk.hardware.info/reviews/2672/4/20-intel-z77-motherboards-reviewed-and-compared-lucidlogix-virtu-mvp.