When we were on the road fulltime we towed a Saturn Vue with our Class A. We used the Blue Ox baseplate, tow bar and Unified supplemental braking system. This setup worked great for five years without any issues. Blue Ox uses removable tabs on the baseplate so when you are not towing there is nothing hanging on the front of the vehicle. The tow bar stores easily on the MH when not in use. Using a "plug and tow" supplemental braking system or one placed on the floorboard is generally a personal preference based on ease of setup.
Based on our past experience, we are having a Blue Ox system installed on our 2011 Honda CRV with baseplate, Aladdin tow bar, breakaway switch and light wiring kit. All the work will be completed by an RV dealer in Vermont. Instead of the "plug and tow" braking system I will be using the RVIBrake2 supplemental system in order to avoid tying into the CRV brake components.
If you decide to do the install I agree that etrailer is a good source. Their product selection is great and customer service is excellent.