When I was a news photographer, I carried a mixed set. Usually I had a 50 on my M3, and 21 on my OM1 (for an accurate view at close distances), or a 28 on the Leica (easy to focus) and 50 Macro on the Olympus. When I used an 85, it was on my M3, and longer, the OM1. There are a lot of ways to think of the problem, but in general, I felt that having two different ways to see was an advantage.
The trade-off is that wides on Leicas are a LOT easier to focus, but less accurate for viewing, and if I were doing it today, I'd probably jump right on one of those Voigtlanders with the ultrawide to 50 finder setup for wide, and use an SLR for tele stuff.
In your situation, though, I'd probably pick one body to carry and a couple of lenses. . . which one would depend on how I felt that day.