Which minor leaguers will have the biggest impact ...

[Allegreenery]

...this year excluding Weiters & Price...Hitters and pitchers, doesnt matter

[thomasps3]

Off the top of my head:
Mat Gamel - INF(?)
Mat LaPorta - LF
Bret Cecil - TOR P
Gordon Beckham - 2b

Good luck, hope this helps.

[AEMRICH]

if travis snider counts in this discussion he has my vote

[hybrid]

For hitters: (in this order)
Maybin
Snider
Rasmus
McCutchen
LaPorta
Fowler
Schafer
Gamel

Pitching:
Hanson
Cahill/Anderson
Feliz
Zimmerman
Carrasco
Tillman

[Diamond Miners]

For hitters: (in this order)
Maybin
Snider
Rasmus
McCutchen
LaPorta
Fowler
Schafer
Gamel

Pitching:
Hanson
Cahill/Anderson
Feliz
Zimmerman
Carrasco
Tillman

That's a pretty good list that I can agree to, though if G.Beckham continues to produce in the minors this year like he did in limited time last year and in spring training this year and if Getz (who had a great spring as well) falters for to much, he could make a big impact by forcing his way onto the big league team. In my CBS league he's listed at SS, but would quickly gain eligibility at 2B.