You can choose one of these two things:

1) A&M wins the SEC and the national championship in football in the next season. However, if this option is chosen, A&M will not perform well enough to play for a conference title let alone the natty again for 20 years.

2) Three Super Bowl wins for your nfl team of choice over the next 5 seasons. No further restrictions.

Super Bowl for the Cowboys. Every time.

Of course the irony of Option 1 is that if Jimbo or any other head coach were to win a Natty at A&M, the Big Cigars probably would give him a guaranteed lifetime contract extension and accept another generation of "meh" in exchange for one trophy.

Super Bowls all day.

Yeah this is a weird hypothetical since the back part of point 1 is pretty much A&M and so therefore a red herring.

Well neither are happening for another 20 years so there's that

Stanley Cup (I know it wasn't a choice), followed by an A&M natty only because I've seen the Cowboys win 4 of their Lombardis.