For me the best option have always been wacom intuos small without screen . It's a sort of convenience when you always see your work as a whole, unobstructed by your right hand, palette and stick in left hand or whatever . Always on a big horizontal IPS screen . No need to bend over in some uncomfortable pose. Had same…
Vote goes to using a traditional drawing tablet because I simply can't imagine an Android (or any other, really) tablet working all too reliably all day long when hooked up to a computer through an app. And like gnoop I'm not a fan of screen tablets/pen displays - I don't think they integrate too well, the application…