IMO, both can be corny and cliche at times, but they both have potential.
I prefer Hopsin, but Tyler isn't that bad (let the HopStans rage on).
IMO, Hopsin is ten times a better producer than Tyler.
Hopsin has the lyricism and flow.
But I like Tyler's voice and delivery.
Though, I liked Tyler's mainstream verse better than Hopsin's.
To be fair, Hopsin (At times) has shown a willingness to rap about issues that really matter, whereas Tyler just rags on gays, celebrities and women.