Iona Pritchard is the highest rated BYU NFL prospect for 2015
Pritchard is the 9th rated fullback
Bills is the 17th rated safety
Lasike is the 17th rated fullback
Yeck is the 22nd rated tackle
Arellano is the 24th rated punter
Here's the source. None of the other BYU players are in the top 25 at their position for the 2015 class.