I pretty much agree w/Turtleboard. If you were at a much less competitive school, I'd say it would mean more to transfer to a more competitive school. However, UR is at least well respected. The other factor you'd need to consider--if you were to transfer to Cornell (or another more competitive school), would you be able to maintain a high GPA? After all, you'd be in a more competitive environment, so more likely your numbers (ie, GPA) would suffer somewhat. How this translates to admission--I don't know for certain.
All I can tell you is that the MCAT is a way for med schools to tell that a 4.0 at "Swamp Univ." doesn't mean as much as a 3.2 at "Stellar Univ."--most likely MCAT scores will give this away.
Just FYI, a friend of mine went to UR for undergrad and went to directly to Cornell for law school. (She's now out practicing.) Your dad means well, but you're the one who would have to do the extra work. If you don't go to med school, that's when the name of your undergrad might buy you more... Good luck to you.