Oh my lanta, Tzar. It's been YEARS since I've even thought about that game. I use to love it - I was also a huge Black & White fan.
While I have to agree with many of the posts, a few of my favorite 'classics' would be The Sims series, the Tycoon series (zoo, rollercoaster, hotel), and of course the Diablo and Warcraft series. I also really enjoyed point and click adventures like Myst. I still try to play World of Warcraft as often as possible but it's really the only computer game I find myself actually making time for anymore.