Who is the greatest mc of all time?

here is the top ten list

1.eminem

2.Tupac

3. Lil Wayne (no doubt)

4.Notorious B.I.G

5.NAS

6.Bizzy Bone

7. Jay-Z

8.50-Cent

9.Krayzie Bone DRUM-ROLL

10.Lloyd Banks

Here is a top 20 list

1.2pac

2.Rakim

3.KRS-one

4.Z-ro

5.Bone Thugs-N-Harmony

6.Lil Wayne

7.Nas

8.Scarface

9.OutKast

10.Notorious B.I.G

11.Jay-Z

12.Ice Cube

13.Eazy-E

14.50 Cent

15.UGK

16.Big Daddy Kane

17.Slick Rick

18.Dr. Dre

19.3 6 Mafia

20.Wu-Tang Clan