It is very well known that the best RFIC, MMIC, mixed signal, and analog schools are:
UCLA, UCSD, Berkeley
Stanford
Michigan
then:
Caltech
Georgia Tech
U Washington
Columbia
UT Austin
The way I know this is from attending Michigan's program. The way you will know this is by talking to people like me
The top 3 (UCLA, UCSD, Berkeley) will be just as hard to get into as the rest honestly, all of these are very competative schools. You can get an idea of relative acceptance rates from that UCSD link posted above (wish I saw this when I applied), I think UCSD might have a lower acceptance rate because of the fact they only accept the students they want to keep for sure (Mich does this, but I'm not so sure about Stanford and the others). It is true that places like Cornell will be hard to get into for circuits, but only because they don't have a large circuit program This is all assuming you plan to apply to RFIC, MMIC, mixed signal, and analog.
Edit: Found another professor's page after clicking on the one above that may help give you a good idea of the applications process for top schools: http://web.eng.ucsd.edu/ece/groups/electromagnetics/Admissions.html this is a very good reference for what top schools look for in terms of gpa, gre, application in general. This professor is really well known and his listed gre scores are definitely in your reach. It seems he emphasizes language and writing skills in addition to engineering. I would ignore the top 25 schools thing, this is definitely the least important aspect - if your application is good, its good regardless of your school.