I'll bite...
1. Check Your Head
2. Paul's Boutique
3. Ill Communication
4. Hello Nasty
5. The In Sound From Way Out (it's a compilation, but a damn good one, so it makes the list)
6. License To Ill
7/8/9. The Mix-Up / Hot Sauce Committee / To The 5 Boroughs (my ranking of these fluctuates, but...