Asus z87 plus vs Asus z87 a

So which is better? Its going to be for a gaming pc http://pcpartpicker.com/p/1B0ug and i'd like to be able to overclock the parts. This is my first build so as long as its somewhat noob friendly and a good overclocker i'm happy.

I'd like to keep the price at around the $1500 mark and if you guys have any different suggestions for motherboards they're also much apreciated

Thanks for the help in advance, YOU GUYS ARE EPIC!

Well Logan has a plethora of vieos that he made with JJ from Asus that covered all of their motherboards in depth. I believe they even compared the two. Here:

https://www.youtube.com/watch?v=T2LX7s5Nic0