It depends a lot upon what you're selling/consigning. But here's the Top 15 for what I collect (memorabilia more so than cards). Strictly based upon my personal experiences...
1. REA
2. LOTG
3. BST
4. Huggins & Scott
5. Inside the Park
6. RMY
7. Lelands
8. Hunt
9. Heritage
10. Grey Flannel
11. SCP
12. Goldin
13. Mile High
14. Memory Lane
15. Wheatland
Also... I recently tried Birmingham/Aquarian for the first time, and like them a lot for lower priced items and affordable singles. Have heard similarly good things about Brockleman and Sterling. And as for Insane Uncle... not so much.
