Ease of towing an 8-ft wide trailer vs a 7-foot trailer

I would venture to say that the Casita would definitely be "easier" to tow. If that is your main concern about RVing, go with the Casita. However, I think you would need to consider which would be better to stay in a campsite with. There is a big difference between the two. More than likely, you will get used to pulling either one, as long as your tow vehicle is up to the job. Good luck and welcome.