Hey folks:
Craig Fitzgerald here from BestRide. I have a somewhat definitive answer for you on quietness among the smaller crossovers.
When the updated CR-V Touring arrived last fall, we compared its interior noise against the prior generation CR-V. The noise in that was the number one complaint about that vehicle.
We also compared it to the Ford Escape Titanium.
We used a sound meter to measure decibels at the same speed, on the same stretch of road.
The result: the current CR-V was significantly quieter than the CR-V it replaced, by a lot at the peak.
But the Escape was significantly quieter inside, despite the fact that by the time I drove it on the same stretch of road, it started raining steadily and the wipers were on.
You can see the full results here: http://bestride.com/reviews/previews/first-drive-2015-honda-cr-v
Hope this info helps.