I tow my 1967
globetrotter which I estimate is weighing in around 3500lbs. It does great on the the flats and around town, we have gone on a dozen trips, anywhere from 3-5 hours one way, and I have never felt like it wasn't up to the task. I recently bought a lincoln navigator to pull the trailer and seat the family more comfortably. I cant feel the trailer at all with the navigator.
I would give your ridgeline a shot, but watch it closely. Your gas mileage will drop significantly btw.
That being said, I would buy another ridgeline for my daily work truck in a heartbeat.