I seem to be in the minority, but I love "Encore".
It freaked me out to hear the "Crazy on You' sample. My mom used to play the hell out of that when I was just a kid... it's kind of a personal favorite.
My current favorites are Rain Man, Spend Some Time, Mosh, Mockingbird, Toy Soldiers, and the finale, "Encore". (Something about Dre and Em, they play well off each other. There's a nice contrast there...)