the greatest benefits to these two program is their location in chicago. loyola is in a middle-class community west of downtown chicago, and rush (though near some rough areas in west side) is still fairly near chicago.
the greatest weakness of rush's program is its chair. dr. abrams, as everyone knows, was passed up to be full chair at hopkins after holding the position as interim chair for several years. in his bitterness, he fled east coast for the midwest. the private group at rush refused to deal with him, and split off from the university. now they have a core group of two attendings that were there prior to the chair, some very young new faculty. rush has new equipment, but unless you're a forgiving person, could be a tough place.
loyola's greatest weakness is its lack of commitment to academics. the department looks nice, but good luck if you're interested in going to into academics somewhere good after training here. they've got modern equipment though and nice ancillary staff.