In the end, some suite style residences will end up cheaper than traditional residences because of the meal plan.
However to answer your question;
REV - before visiting Waterloo I was gonna choose REV simply because I heard it was more lively and exciting compared to other residences. When I visited, I felt that REV had a strange feeling more than comforting, rooms/building was far and a bit run down. I didn't feel I'd blend in well at REV.
V1 - by far V1 has the sketchiest looking building out of all of them, all weird separated and detached from the outside. However, inside everything seemed newly renovated and nice and vibrant. I especially like the interconnecting rooms at V1 that REV doesn't have (it gives the experience of a double room, with a little more privacy), my parents were whining how the rooms were small though. I especially liked the central lounge/centre of V1 that made it feel fun and welcoming.
From what I was told by the former student doing the tour, REV only double rooms.
I JUST WANT TO GO TO UW AFM.