248 Step I, 252 Step II, All honors in everything (except surgery). I am a resident in internal medicine. I am not at a name brand school (Yale, harvard, UCSF, etc).
You choose the field that you want, the field that feels the way you feel, that lets you do what you want to do. You will choose the program that feels right. Their morals match yours. Their purpose matches yours. If the direction and purpose of the field matches with your direction and purpose, then it is irrelevant what your scores are.
"Overqualified" means "has really high scores so won't get screened out of a competitive speciality." Often people who are "overqualified" are infromation machines, memorizes, and people who do well on multiple choice exams. This often does not correlate to real life. So someone might be "overqualified" and end up sucking in their "easy" field (I see this often in medicine), whereas someone might be "underqualified" by scores, and end up dominating in their chosen field (I see this, in particular, with one surgery intern this year).
I built my resume as if I was going into Optho. I cared about my board scores, I cared about my class rank, I cared about getting honors, I got research and I got published. Why? Just in case. Then, when I applied to residency in "easy medicine" people looked at my resume and say "well, if THAT guy wants to come to OUR program, lets take him! He's totally overqualified!" and I won. Sure I got interviews at some (definitely not many) of the name brand places, but I ended up choosing where values matched.
And I love it.