Given that the OP already mentioned Hopkins I just wanted to put in a good word again for our programs Peds experience. Hopkins has the only level 1 pediatric trauma center in the entire state. We often even get serious cases flown in from surrounding cities of Pennsylvania and Delaware. Both the Union and Univ. of MD come to our program for their major peds experience. As a resident here you get a significant about of peds experience both in the OR and in the ER. You will be more than capable of placing spica casts on yourself, reducing all sorts of peds extremity fxs, etc. We also are very heavy into peds spine deformity work and spine in general. Peds also happens to be the most chosen sub-i rotation because its just an awesome experience.
With that said, you shouldn't chose a program just because of their peds exposure, but overall how well rounded they are. Hopkins is well rounded and so are many other great programs, but you don't want to go anywhere they is too strong in peds in weak in many other areas.