We've used every kind of bike carrying contraption out there. The best was the trailer we had with a bike bay. Second best, IMHO, has been on the roof of the TV using high-end gear such as Thule trays, but not always practical when your TV is a pickup or SUV. Rear carriers have always been a problem, with that whipping motion at the back -- both for bikes I've carried that way, for the guy whose bikes flew off in front of us, and for several friends who lost or nearly lost bikes off the back.
Which brings me to our Bighorn. My plan, since we don't intend to get a washer and dryer, is to turn that space into a bike storage closet. We have high end road bikes and keeping them bolted down, clean and secure is important to us. I'm planning a vertical storage solution, in that space.