Looking for a Good Jet ski ANY suggestions?

We are looking to get a pair of Jet Ski. Must have 3 seats but I'm not sure on what brand is going to be best for the price. We will be buying used when it comes time but have never owned one before i need to know if there is anything i should be looking for. I want one that will be powerful enough to ski, tube, and knee board with pengers. Any Help would be great. Thanks in Advance