Can't say anything about AAA but we've had Good Sam since we started RVing about 5 years ago. Since we have an old (1990 Winnebago Warrior) motor home we figured having good roadside assistance was essential. They have saved us lots of money. Even when the policy doesn't pay for a service, they are still extremely helpful.
For example, our heater core blew as soon as we pulled into Disney's Fort Wilderness. I called Good Sam and even though the failure was of course not covered by the plan they were able to put me in contact with a mobile repair service that came out and ran a bypass on the heater core so we could get home.
I had the fuel pump solenoids blow and later the fuel pump itself and both times required a tow to a repair facility. One tow can pay for the cost of the insurance.
Good Sam has been fantastic for us and I will continue to use them.
Steve
1990 Winnebago Warrior. "She may not look like much but she's got it where it counts!"