Who would've Harry chosen for Sirius' rescue mission?

[kempermentor]

No: HPFGUIDX 125253


In OoP, US pp, p761, Harry is thinking: 

If he could have chosen any members of the D.A. in addition to 
himself, Ron and Hermione to join him the attempt to rescue Sirius, 
he would not have picked Ginny, Neville, or Luna.

Which bares the question: Who would he have chosen if he had three to 
choose from?

I'm going to exclude the 2 obvious because they were no longer at 
Hogwarts: Fred and George.

I would guess: 
Ernie, because he's a prefect which suggest some talent somewhere;
Lee, because Harry would trust the twins and their friendships with 
others;
and Katie, because she can take a hit as seen on the quiddiitch pitch 
during practice and on game days.

-kemper