Been with the RAC for years - got the basic roadside package and it's done the job well enough. Doesn;t cover breakdowns at the home address, but if you can push the car to the next street, you're ok!
An amusing anecdote about the AA too. I used to work at a motor factor's, and we had display (empty) car batteries on a stand outside. As a cruel practical joke, we used to fil lthem with tap water and pretend to tip the ''acid'' over the new starters.
One was left on display full of water, and someone sold it in error. The customer brought it back in as his car would not start. The AA had checked it and said that a cell was down on it. They didn't notice that the round terminals were hollow with holes that allowed you to see into the battery. Prising the inspection lid off also revealed no insides to the battery. AA the fourth emergancy service? I've stuck with the RAC ever since