New Vegas and Vanquish are f***ing amazing. NV is really big improvement over Fallout 3, I only played for a couple of hours but it seems a lot deeper in pretty much every way. I recommend playing on Hardcore mode, it's really not difficult to eat, drink and sleep every so often. In fact you have to do all those things a lot less often than I would have thought so it's really quite easy.
Vanquish is also great, everything about it is extremely polished; the controls are great, the gameplay is hands down the best of any TPS I've ever played and it all runs seamlessly. There's no screen tearing or frame rate drops despite having a bajillion things moving on screen at once and the visuals are downright sexy. It's also not as short as some reviews have said, I'm up to Act 3 (of 5) and I've played it for a good three or four hours so far. You might not take so long playing on Normal or Casual but I don't honestly know how much of a step down it is from Hard to Normal so I can't comment.