I'd suggest Razer Edge Pro 256GB Tablet
http/www.amazon.com/dp/B00BIFX5JE?tag=130d3e-20 It's best windows 8 tablet for gaming needs. I know it's little bit costly but satisfy all the needs too.
ASUS Eee Slate B121-A1 12.1-Inch Tablet PC - White
http/www.amazon.com/dp/B005HV3IMY?tag=130d3e-20 also a good tablet and very cost effective too. So if you are price conscious then it's a good alternative to think for.
Acer Iconia W700-6691 11.6-Inch 64 GB Tablet (Silver)
http/www.amazon.com/dp/B009H1BI0O?tag=130d3e-20 another good option and same price as ASUS Eee Slate. My friend have one and satisfy with the performance.
Thank you