Never been a PC gamer, so I haven't played the System Shock games and thus can't compare. I could not agree more with naznatips 3rd and 4th points. As for his 2nd point, as other people said, with VitaChambers turned off the Big Daddies are more difficult and require even more preparation, at least until you get the Electric Gel.
I haven't owned the console long, but BioShock is my favorite 360 game. I don't care for decimal points when it comes to ratings, so I'd give it a 9/10. Loved the atmosphere, the Medical Pavillion and Fort Frolic levels really creeped me out (not a fan of hospitals or paper-maché). I just wish the game were longer, as Rapture seemed a lot bigger and I would've liked to include more of the city into the plot. Don't really care for the post-Ryan portion of the game. Found it funny that Tenenbaum basically controlled Jack for the last 1/3 of the game after breaking Atlas's mind control. So much for free will.
Plot question, what if Jack hadn't survived the plane crash at the beginning? There goes the great plan.
