All Nite (Don't Stop) is the song that really got me to get into her entire discography, so I hold that song above almost all others, but:
If
Empty
Son of A Gun
Go Deep
That's The Way Love Goes
Personally I feel about 85% or more of her discography is something I could listen to and not skip to the next song, which is rare with such a big one. I couldn't even say that about Madonna.
