Currently I suggest avoiding L&M. They have a penchant for raising your rate at check in if they feel like it.
The problem with Hotwire and Priceline is that sometimes the rental company insists you buy one or more insurance "options". Here I maintain that you are still not obliged to buy the insurance and Priceline or Hotwire must do a refund if the rental company refuses to give you the car, but that doesn't help when ou need the car.
Do not use Priceline or Hotwire unless the under-25 fee is included. It does not make sense to win a 20 dollar bid when the counter agent announces a 25 dollar under-25 fee when you could make a regular reservation for 25 dollars a day and the resrvation agent tells a 10 dollar uder-25 fee.
Requiring collision coverage is a rate increase in disguise. Rental collision coverage is not insurance, it is just a fee for a promise not to charge you for that kind of damage. If you don't need or want the promise, you should not have to pay for it.
I suppose that in the event of an unauthorized rate increase you can argue for a short while and then tell them "you are going to rent a car somewhere else and hold them civilly liable for the difference in rate". But better to avoid getting into problems like this and choose some other company.
Disney hints:
http://members.aol.com/ajaynejr/disney.htm
