Are you fucking kidding me? I mean I love Macklemore and Ryan Lewis, and bump them all the time, but there is NO WAY that it's the best collaboration album of ALL TIME. They're working their way up. They're gonna be fire in the future, and have some really dope tracks on that album, but I don't listen to every single song on the album. Right now he's (Macklemore) has some truly amazing singles, but this album isn't close to consideration in my book.
P.S. I live in Seattle, and have listened to Macklemore since middle school (5 years). If anything I'm biased towards him/them.
Three I think deserve mention:
And Game approached Nas about collaborating on an album. Before it's even guaranteed, I know it'll be one of the best albums ever.