If you want to ride the ski lift, and the regular line is super long, just use the single rider line. It's way shorter and really, who cares if you have to ride with someone you don't know? You just need to get to the top as fast as possible!!!
Remember to stay hydrated at the water park. Being surrounded by water, you don't really think about it, but it's easy to get dehydrated at a water park.
As for MGM, you might want to check out Who Wants to be a Millionaire, since it's closing in August. Honestly - it's a lot of fun!!