1. Mo' Wax (the amount of fat records released on this label is absolutely ridiculous. I'm not into collecting full back catalogues of labels, but sometimes they leave me no other option

2. Metalheadz (same as above, but i'm not feeling everything they've released recently. The long shelf life is a plus)
3. Phil L.A. of Soul (pretty unknown 60s/70s label that released a shitload of great funk and northern soul 7" singles. And i LOVE 7" singles. Most of the originals are still reasonably piced, so easy to pick up with my small student budget.)
4. Def Jux (RJD2's releases alone make this a must for me. Also a large amount of wicked rap albums like I phantom and Cold Vein)
5. Stones throw (MADVILLAIN!)
Deserved to make it in the list, but didn't: XL, DC, Ninja Tune, Outcaste, a handful of old jazz labels, a handful of old soul labels. Maybe when i'm doing a top-10 once...