I couldn't name 'a best' because there's so much diversity on it.
Different themes and vibes. It's easier to name a best verse on... Relapse as the album is more a one-tone album. It has many ideas but he keeps in character.
But on Recovery you got introspection, concepts, love songs. I'd at least have to categorize. But I'd rather not anyway, everything on the album is awesome, it just irritates me trying to rate the verses against each other lmao.