As opposed to what? your INDIVIDUAL opinion?
(1) To have big sales, you have to show consistency, and thus, sales are an indication of whether or not the consumers are wiling to pay for your product...
(2) Received accolades from peers is a better way of judging if an artist is worth his/her salt than listening to what an individual fan has to say....
Eminem, Jay Z and 2Pac have the sales and praise from their peers, and therefore they are MORE deserving of the Top 3 spots in Hip Hop than ANY other rapper that has ever held the MIC....
You can't make a REASONABLE and OBJECTIVE case for another rapper to be better than Eminem, Jay Z or 2Pac...
Also, Nelly, Biggie, MC Hammer, DMX, 50 Cent, Ludacris are ALL MORE deserving Top 4 or 5 than GFK...
If we are being OBJECTIVE....That's the key word...