for gaming i would go with the Asus VH238H
Lower response time 2ms (versus 5ms from the VS239H-P)
By what i've searched none of them is 120hz.
Yes the second one have a IPS panel that is also a pro.
for gaming i would go with the first one, you could search for 120hz display for gaming they are awesome, i use one, and i can't go back to non 120hz displays for games.