Top ten prospects lists mix too many things. Long term upside guys, close to the majors guys, 18 year olds, 26 year olds.
Try this. Who are the five prospects with the best chance of becoming good Reds players?
Emphasize near certainty of becoming good major leaguers. If there's a high degree of uncertainty that's a big negative (even if the upside is high). But an expected good player, not a scrub. Obviously, higher level or more established prospects benefit from this formula.
Alonso, Frazier, Roenicke, Thompson, Valaika.