Just looking at catch and shoot numbers....K. Richmond ranks very low (2 percentile) and C. Coward (93 percentile) very high. Lathon was in the 60's and Poplar was in the low 70's percentile. When I look at shot motion and release time, very impressed with Coward. He looks like a very confident shooter who needs little time or space. When I look at Richmond, I see a slower motion and lack of fluidity.
Between the 4, I haven't seen enough of Coward to know how he would rank against top competiton and in the big lights but I beleive it would carry over. Poplar might be the safest bet, he had good size (6'5) and best leaper, played against top competiton, solid numbers for shooting, tranisiton, passing. I feel good about Lathon as well, he looked very good against the Illini and shoots a very confident shot.
Richmond, I would pass. To be that alpha scorer you will get the ball often with few seconds in the shot clinic. You have to be able to spot up and shoot or dribble and shoot. His percentile ranking for both are very low. I also mentoned the mechanics, I rather not hope that all gets fixed by next season.