The Incredible Machine!
+1 for words with friends!words with friends or a decent golf game.
If I could pick one game from the iPhone that I want on the Droid, it'd be Zenonia. I'd choose this because I think it's a fairly easy port to Android, especially since it's already been ported once to Windows Mobile. It'd also be easier to control than on the iPhone because of the Droid's keyboard. Not to mention it's a fantastic game .
Another idea would be a game like Dungeon Hunter from the iPhone. I can never get enough of the classic hack and slash games!!