I ranked highly mostly programs that had in house call, not because I like in house call, but because I liked those programs. Initially, one of my attractions to rehab was the promise of a Dermatology or Rad Onc like home call residency for average Joes with average scores, but in the end that didn't matter as much.
Covering even 50 rehab patients is not bad. You'll get fewer calls than you'd get with 1/3 as many Internal Medicine patients. Also you're not doing admissions at night. You'll easily sleep most of the night and then leave the next day at noon.
OTOH, home call in some PM&R programs can be a real screw. I know one person who ends up going in several nights in a row, and having to put in full work days in between. People in rehab wards still develop chest pain, mental status changes, etc. It's much less painful to quickly assess them, write a note, and then transfer them out to the ED if you're sleeping downstairs than it is to do all those with driving in to the hospital and driving home if you've got home call. IMO, PM&R home call only really works in the small programs with minor/"Ortho" rehab departments that just take very basic cases, with no more than 20 patients or so.