I'd steer clear of the Mazda. I've been under a Mazda hood way too many times. The Ford's not a bad choice nor the Honda, I'd verify if they are near a 100,000mi mark that if the engine has a timing belt or chain. If it's a belt and it hasn't been replaced it needs it done VERY SOON! If it's a chain there is no worries unless it's making noise. I'd also say make sure the check engine light is working. To do that turn the key to the run position but do not start and a check engine/service engine soon light should come on if it doesn't it's disarmed and something could be VERY wrong.