[Q] What Android Head Unit to buy topic

I'm looking to buy a new stereo head unit for my Chevy Trailblazer. I'm no stranger to android os nor am I to rooting phones. I kind of narrowed it down to these:

http://www.amazon.com/dp/B00OIQJ21K/...I2RRLJ1DPL17GB

http://www.amazon.com/dp/B00OB90SOY/...I1OKEG3KICTLGC

I'm looking for some opinion's or any knowledge on what would be the best to buy.