Basically, Quinn has never made a wack CD in his life, but the best ones to start with are LIVE-N-DIRECT and THE HUSTLE CONTINUES, which have his best Get Low solo stuff, as well as nice appearances from JT, D-Moe, Seff and several others.
After that, REPOSSESSIONS is well worth your money because it contains many songs that Quinn did for compilations during the mid-to-late 1990's (and most of the comps on which these songs first appeared are out of print, so this one is valuable historically).
His last "new" solo, THE MIGHTY QUINN (2001) takes some getting used to, since the production is more slick than usual, but once you get past that, there's dope songs there too. His very first CD (DON'T CROSS ME) is cool lyrically, but the production might be a little dated.
PEACE!