College guys tend to grow a maximum 10-15 points in the pertinent categories, regardless of what their projections say. High schoolers are usually able to grow 20-25 points. Without knowing how much you have invested in HS and Coll. scouting, I would guess the 18 y/o will be the better player. I would expect him to end up with mid 70s control, and LH/RH in the low 70s, with four solid pitches. He looks like a reliable SP2 to me. The 22 y/o's control and splits will be similar, but his pitches won't be as good. I'd project him as a SP3/SP4...but he should be ready for the ML in one year, if that matters...