Assuming they stay at #10, I think they should go SG...
in order:
Muhammed - I like his ability to score, his size & physicality, ability to draw fouls, offensive rebounding, post up ability and ability to shoot
KCP - Like his shooting, late game big time shot making, good size
McCollum - I like his versatile scoring ability (probably best pure scorer of this group), good offensive player, smaller size I think could be an issue, I think he could be a very good 6th man, as starter POR backcourt would be undersized
Franklin - I like his aggressive drving ability, his aggressive overall play defensively, seems more well rounded than other players, but similar to what POR already has in Barton, likely better
I expect that at minimum 2 of those guys will be there at #10, most likely Franklin and either Muhammed\KCP....
If they don't go SG, and decide to go big, I think a guy like Dieng or Withey make sense, as centers who could come in rather quickly and start, both good defenders...
I wouldn't mind seeing POR deal with DAL for that #13, picking up a SG at #10 and then a big man at #13....
2nd round, I like Desaun Thomas as a Carl Landry type offensive scorer coming pff the bench, Siva as a potential b\u PG. If CJ Leslie was there in the 2nd, I think he would be an intriguing guy to take a flyer on...