Some of my favs:

Excalibur by The Dungeon Family
In The Ghetto by Rakim
So Many Tears by Tupac
Today Was A Good Day by Ice Cube
One Mic by Nas
Renegade by Jayz/Eminem
Vice Versa by Pastor Troy
Never Seen A Man Cry by Scarface
One Day by UGK
13th Floor by Outkast(ATLiens)
My Life by Killah Priest (Priesthood)
Cell Therapy by Goodie Mob

I thought I was the only one feeling Vice Versa
Paid in Full-Rakim
Dip Set Anthem- Diplomats
Daydreaming- Cam'Ron
Santana's Town- Juelz Santana
One for Peedi Crakk- Peedi Crakk

I have always like
Dear Mama-2Pac
Gin and Juice-Snoop
Juicy-Biggie
Nothin' But a 'G' Thang-Dre and Snoop
Brenda's Got a baby-2Pac
Hard Knock Life-Jay-Z
Quiet Storm-Mobb Deep
Get@me Dog-DMX