AAA has RV plus and premiere, I have both Good Sam and AAA RV Premiere. So far both have treated me very well. As for cost, to get AAA's services with RV Premiere, $140.00 per year, you have to go with Good Sam's RV Platinum+, $170.00. I believe in backup, so if one fails me, I have another one to back me up.
Just to give you an example, I called GS on a Sunday to change a flat tire on my MH, they said they supposedly could not find anyone and I would have to wait until Monday. I called AAA and 1 hour later we were on the road for our week long outing. I think GS did no want to pay weekend rates and were going to stiff us for their pocket book, but that is just my opinion.
I will not be renewing with GS when my time is up, I will be giving Coach Net a try, I have read lots of good things about them.