for the Nats 2011 #1 pick, Alex Meyer.
Meyer, the 23rd overall selection of the 2011 draft, pitched well in 2012, his lone season as a pro. He pitched at Class A, posting a 2.86 ERA with 9.7 K/9 and 3.1 BB/9 in 129 innings. The 6'9" 22-year-old might rank sixth among Twins prospects, John Manuel of Baseball America notes (on Twitter).
Here are Meyer's stats.
I am guessing the equivalent offer would have been if the Reds sent Stephenson to the Twins. Meyer is older and was taken about 5 slots ahead of Stephenson in 2011. He was ranked by BA as the Nats #6 prospect prior to 12.