I am in the application process now for pedo so when it comes time for you to start I can answer any questions you have. Dr.2b has been extremely helpful in my search for programs and quetions that I had during everything. I highly suggest taking a look at the list of programs this fall, and kind of making a generic list. Then, if you have time, try to do some externships at some of them, even if only for a thursday/friday. I did not do this but some classmates did...I didn't have the money/time. However, i externed for a month this summer at a program and I really got to see how it was, and significantly increased my value to them because they got to know me.
I applied to a lot of schools, so we'll see what happens around interview time. Here is the list: Boston Children's Hosp (Harvard), Columbia, Montefiore (NYC), UPENN, Temple Episc., Children's Hosp of Wisconsin, Cincinnati Children's, OSU-Columbus, UMKC,VCU, Children's National (DC), MUSC. I'd like to think I'm fairly competitive, Part I in the low-mid 90s, top 10% at UNC (3.9), a lot of extracurriculars and pedo experience, limited research. I can post my experiences with programs or PM if you would be interested in any of them.
There are a lot of programs. Try to decide if you want a school-based or hospital based programs, how impt stipend is, geography, etc. The AAPD has a nice list of programs with info about them, and PASS has a search engine as well. Here are the links:
https://pass.adea.org/
http://www.aapd.org/training/