We had our first at St. Paul's and enjoyed the all in one Labour/Delivery/Postpartum rooms. We lucked out and got a corner room which was spacious, had a nice bathroom.
We wanted to have our second at St. Paul's but they were full. We were told there was only one room left at Women's so we went and managed to get one of the 2 Cedar rooms which are also all in one Labour/Delivery/Postpartum rooms. The room was nice, but we left less than an hour after the baby was born.
I haven't been to RCH, but if I was to choose between St. Paul's and Women's I would go with St. Paul's because all of the rooms are L&D.