I'd list the 2nd player (B/4 ball) as my top pick as he should have decent starting skills, and 4 ball potential is good enough for almost any training program. The 2 ball potential player I'd personally list quite low as the potential range he'll fall in isn't very good, and I prefer working with quality players. The other player you could list high and hope for good potential/age. I typically will put all of the unknowns over any 1 or 2 ball potential players.