In general, the players really in competition for major league jobs will get the most plate appearances in spring training. They want players to see major league competition, not the other teams minor leaguers, so it also matters when a player gets his chances. But the result of that is somewhat the same. Players who start games get 2 or 3 at bats and the guys who hit later, often only get 1 or 2.
So I thought it would be interesting to look at where things stood so far in terms of plate appearances. Here are the Twins players who have received the most plate appearances in regular games so far in spring training.
24 - Willingham
23 - Morneau
22 - Nishioka
21 - Doumit, Plouffe, Revere
20 - Burroughs, Casilla, Valencia, Carroll
19 - Mauer, Parmelee, Span
17 - Benson, Hughes, Dinkleman, Pearce
15 - Dozier, Mastroianni
13 - Bates, Tosoni
11 - Florimon
<10 - Everyone else
If you look at that first group there aren't many surprises. Parmelee and Burroughs are the only players not likely to be on the major league roster.
What is surprising is none of the players that would appear to be competition for Nishioka are getting a lot of plate appearances. Florimon is the only one listed above, although both Chang and Holiman have 9 plate appearances. That may be an indication that one alternative to Nishioka is go without a true utility guy. Burroughs, Plouffe and Hughes could back up at third, shortstop and second respectively. Its also possible Nishioka has shown enough in camp that they think he is likely to win the job.