I happened to stumble onto John Stockton's stats. Physically, very similar to Monte (6'1", 175lbs). It seems to me like his impact to his NBA team is very similar to Monte's impact on Iowa State. Not the #1 offensive option, but can take the big shot when necessary. Runs the offense effectively with a lot of assists. Good 3 point shooter but not a great 3 point shooter by any means. Not a lock down defender, but a good defender who gets you a couple of steals per game. If you look at their college career track, they are very similar so far, with Monte having the edge playing against tougher competition.
My main concern with Monte in the NBA was size and the ability to defend, but that didn't hamper Stockton. Avery Bradley is a current player similar in stature to Morris having himself a pretty good start to an NBA career. Mike Conley is another one.
Predicting draft position is such a crap shoot. How many teams need a point guard? How many good PG prospects are out there?
My hunch is that whenever Morris goes, he'll be late first round. I don't think he has a high ceiling, but I don't think he'll be a bust. I don't really see him as being a star point guard that you build a team around, but I can totally see him being the starting PG on a team built around another star.