What is the best portable graphics design tablet for artist?

[blackcatbam]

I am looking for a new pressure sensitive tablet pc for doing art work. I've been researching for days, it seems there are many tablets and companies to choose from so if you wouldn't mind giving me your opinion I will be very thankful.
I am looking for something with a large screen (big as possible), great pressure sensitivity (wacom didgitizer), 2D and 3D program compatibility. Money isn't too much of an issue, I will go new or used as long as it is worthy.
I have heard great things about the Asus ep121, is it out dated? Will there be something better comming out soon? Also I woudn't mind it being larger or being laptop styled so I can have a keyboard to use. Does something like that exist or is soon to be existing?
Extra points if you can tell me what stylus to stick with!

[Spieler]

get the Microsoft surface RT
it really is an amazing tablet
it has a 10.6" screen with very good and high resolution
colors look clear and sharp on it
the tablet build quality is amazing
it feels perfect and its made from solid materials
the os on the tablet which is windows 8 is also amazing
its fast and fluid and also simple and easy to use
its made with touch in mind
the web browser is extremely good its fast and pages load up quickly
and it supports flash which is a huge plus and which is something that is lacking on most android tablets and all ios tablets
battery life is very good and would easily get you through more than 10 hours of heavy use
you can download apps from the windows marketplace which has many high quality apps
thousands of apps are being added everyday
more than 2000 apps were added in less than 2 days
it does have more than 20000 apps now and like I said it will keep on increasing
it has dual cameras and both of them take amazing photos and videos
it has deep social network integration(skype,facebook,twitter,linke… and so on)
you also get Microsoft office 2013 for free on it
and if you get the keyboard and attach it to it you'll have a laptop
overall the surface is an amazing tablet and you should get it
hope i helped
tell me if you decided to
and if you got any question or need any help you can email me at spieleranswers@outlook.com