I love RTW myself. The interface is a bit cleaner than MTW, and trade/developing your empire is a lot more fun. The graphics are much better, and the pre-battle speeches are neat. I think there are some complaints that it's not realistic, or that the AI is too easy to beat... personally, I'm not a history student so the realism doesn't worry me too much, and the AI provides quite enough challenge for a player of my calibre.