I only liked MMLP. SSLP was pretty decent but seemed kind of kitschy.
Eminem's older stuff was better because he needed to prove himself, being a CAC in a post-Vanilla Ice/Snow rap scene. He done anally prolapsed the game with MMLP, which then he rested on his laurels from TES on. Recovery was a decent effort but only because he cared just enough to undo the damage he did with Relapse. Like other rappers who retired (Jay-Z, DMX), he was better off staying retired.
I might give MMLP a listen this weekend.