The Hilton Garden Inn Hershey. It is a fantastic hotel, not too expensive, really clean and nice and it was recently renovated. All rooms have frisbee and microwaves and coffee pots too. We have stayed there many times and have always had a great stay. We love the Hershey Lodge too but when it is booked we stay at the Hilton Garden Inn, it's always cheaper than the lodge. Also the Hilton is a very short drive to the parklike 10 mins. There is also a bunch of chain restaurants tight next to it.
We love Hershey and even have a fan site with info and pictures and menus of the park if you are interested:
www.hersheyinfo.com