Honestly i've had GREAT Ncaa drafts. I mean i've had guys turn out to be Beast. The imported are based on size and stats. If you have an undersized players, make sure their stats are
beast for them to be successful.
i have an example in the other draft class thread above this one. Other that that prototype size is the beast bet, but the Ncaa drafts have very few sleepers, maybe 3/4 rounders...and ratings are much weaker than auto-gen classes.
I mix both, but i also know and adjust my classes for balance, takes a lot of time. Also i control 32 teams in Madden, so more control, but at least i make the league how i want, and know what i'm getting, but the players are mostly weaker.
Also you an do the same with auto-gen classes...this link will tell you the A grade players for Madden.
http://www.osatwork.com/forums/showthread.php?t=350205