What is the most underrated hip-hop album of all-time?

We always talk about underrated MCs and Producers etc…but what album is the most underrated?

and I'm not really getting at naming albums by unknown artists…I'm talking about albums from (at least somewhat) popular artists.

The album that brought the post about is Hold It Down by Das Efx.

They went platinum with Dead Serious. Gold with Straight Up Sewaside. And then they failed to even go gold with their third album.

And to me, Hold It Down is their best overall album.

What other albums can be named?