Off the top of my head, Joe got the better of:
Game
Lyoyd Banks
Jay-Z (maybe just subliminals)
Saigon
some mixtape rapper who knocked on the door of one of Joey's friends and beat them up
Only losses for Joe:
Based God
Wu Yang punching him in the face
Cam wasn't reading his verse he was checking those 10 digits in his bank account so you haters can watch him spit and count his money at the same time no homo B.