Rick Ross low key put out some of the best mixtapes/albums last year....but his time as being a hot mc has passed him.
There are like 5 tiers of the "relevant" rap world.
1. The Luminaries: Jay Z, Nas, Eminem, Kanye...maybe Lil Wayne to an extent.
These are the highly established stars that don't need to be hot to make a huge impact. They're always looming...and when they do decide to drop...it will be big and impactful. Good or bad. These type of artist generally should be disqualified from the "hot" conversation. They've surpassed that.
2. Hottest Rappers: Drake, Future, Kendrick, Cole, Big Sean.
These are the most anticipated, played, toured and popular rappers. They have the collective attention of both hip hop, and mainstream fans. Their impact is seen constantly on social media, streamed, heard on radio, watched on tv, played in clubs, and placed on charts. These guys headline major tours on their own. Their albums sell well, and generally recieve positive reviews.
3. Hot: The bottom half of the list. Young Thug, Fetty Wap, Yo Gotti, Kevin Gates, Meek, Travis Scott...hell, even Rae Sremmurd.
These artists consistently put out records that catch the attention of the hip hop fan base as a whole. They have established fanbases, social media presence...and a big record or two in rotation. These are like the "career year" guys. What they do in that year can determine if they are hot or not.
4. Bubbling: Young Dolph, Lil Uzi, Desiigner, Kodak Black, Chance the Rapper.
These type of artist are the ones who have new big records, growing fanbases, social media presence....but don't have the body of work, nor notoriety to be truly hot. They lack album sales and multiple charting. They are known more in their niche, and typically online.
5. Known Consistent: Fab, Ross, Jeezy, Tip etc.
These are the artist that once were hot, but their time passed them. They can still sell 50k to 60k first week due to a strong core fanbase. But the larger audience has moved on, and doesn't care to really check for their sound.