Hottest is in regards to the hype I assume. Lyrics are only one facet of the ranking. I really do feel as though Kendrick and 2 chainz really do have the most buzz in the game right now, undeniable. Though I personally like Rocky over most folks on this list, I don't feel as though his mainstream appeal is not as high as he thinks considering the #1 and #2 people on the list are on his hit single lol.
True . . . yeah your right, in terms of just hype that list fits perfectly . . . 'cept for Nas?!?!