I don't know what rig would be better, I think it might be the second one because the CPU is better and as far as I know, so is the GPU.
Rig 1:
http://pcpartpicker.com/user/Enos/saved/2sOK
Rig 2:
http://pcpartpicker.com/user/Enos/saved/2HAY
Rig 1:
http://pcpartpicker.com/user/Enos/saved/2sOK
Rig 2:
http://pcpartpicker.com/user/Enos/saved/2HAY