Both were 2nd round picks, probably because of their lack of athleticism.
Both are terrible defenders (mostly because of lack of effort) and both are not very smart when they have "compicate" decision to make. At offense, both can shoot and both can go inside. However it looks like Mo can do that with coordination with his teamates while Redd can't. Mo showed that he can play PG but last few games he has been better solution for SG than Redd in most of this season. Redd is taller but beside that it looks like Mo has all of his qualities without some of his defects. Mo is clutch while Redd is not for example. Mo has better chemistry with teamates. Mo is leader while Redd is not. Mo doesn't force as much as Redd. Mo pass when double teamed while Redd shot over 2 and sometimes even 3 defenders. Redd drible with his head down while Mo doesn't have that problem. Mo play with pride while Redd is relaxed and friendly with oponents even at the end of game.
It is clear who I prefer isn't it

So lets vote. Who is better player right now? Mo or Redd?