All you that think you will go into pedo...you may change your mind when you start assisting in the clinic. Kids are the toughest customers of them all.
All you guys that are thinking of ortho...better forget about sleep during dental school. The competition is ridiculous. Almost as bad as endo (which most people don't know). I have a friend here at UConn that got a 96 on NBDE I and was high up in the class and didn't get matched for endo anywhere...had to do GPR for a year and then reapply.
Difficulty of getting in: OMS < ortho < ENDO!!
Money: OMS < ortho < endo
I guess it makes sense, eh?
Strange though, length of residency: OMS>endo and ortho
Oh, and prosth. is not popular at all because it is becoming basically obsolete these days with the advent of the implant age. They have just in the last couple of years tried to jump on the implant bandwagon, but perio holds the death grip on it with OMS and then the general dentistry guys following. There will always be some type of need for prosth, but it is just past its zenith, that is for sure. They won't succeed with implants, especially now as general dentists are starting to place them, and they will really be strapped for cash. All they will be good for is to don their loupes and tell you your wax-up sucks because the "emergence angle" is off.

God bless wax-up preceptors.