I find V.A.T.S. fun. I guess becuause it gives me a semblance of turn based combat. (yeah I know it's not really turn based combat, but it feels like it a bit.) I will probably play it hard core mode or is that what you mean "survivalist". I ruin too many of my games by looking for "tips" or I read real spoilers, so I will play this without reading it. I will even buy the strat guide so I don't ruin anything by coming on the forums just in case I read something that can spoil it. Happend with Morrowind, Oblivion and Fallout 3. I know it will happen with New Vegas it's self.
So this will be a new experiance, and since it like Fallout 3, there is really no excuse to play it once to get a feel for the game and then play differently the 2nd time around. To play it for real the 2nd time around, you already know where alot of things are so then it's not a spoiled for you.
So hard core for me the first time around. Will really make me think of what choices I make then.