Xcelerator absolutely CANNOT be missed. Montezooma's Revenge is a classic. Silver Bullet is okay IMO but is fun. Ghostrider, only ride in the front unless you want a back adjustment.
You have to go on the Log Ride and Mine Ride. They are classics.
As for restaurants, if it's your first time you have to eat at the Chicken Dinner Restaurant. It's outside of the park in the Marketplace. If you have to eat inside the park then it's the Ghost Town Grill. It's the only decent place inside, IMO.
They are opening a Jhonny Rocket's in the park, but I recomend the Chicken restrauant right outside the park in the market place (There's also a TGIFriday's accross the street) so plenty of food options.
As for rides, I recommend doing all that you can (which you should be able to do all of them) but don't miss the log ride, Supremem Scream, Xcelerator, or Montezooma's Revenge. A good ride to take a break on would be the Calico mine train It's slow and pretty cool for how old it is.
"Tonight I wash my hands of you
You set the bar I could not live up to
Tonight the light is breaking through
So thank you very little and send me postcards from hell"