Playing as an archer/assassin at the moment with most of my points in thief skills, I play on master. I have no points in black-smithing, a few in enchanting, and only a few in light armor, so it forces me to play the part: if I can't get all or most of my kills quickly while undetected, I'm guaranteed a swift death. Out of all the play styles, this one has been the most immersive and engaging for me so far, as well as challenging and rewarding... I suppose you could say, very realistic as well, that is, flimsy rogue cannot tank
Just watch out for the elder dragons... they hurt...