These days I tend to use 5-shot guns for backups rather than primary. That said, I can generally wear comfortable clothing and "dress around the guns." Different people in different climates/jobs/dress codes don't all have that option.
When in doubt, carry BOTH your snubbies. Drawing the second gun is faster than a reload, and a second gun where your support hand can reach it is a potential life-saver in a number of predictable situations.
Personally, if I was limited to ten rounds before a reload, I would feel I had more options with them distributed between two 5-shot revolvers, one on each side of my body, than in a single 10-shot autoloader.
The important thing is what works best for YOU.