The last two years we've done CP package at Garden Grill, and I can recommend that choice. While not a gourmet experience, the food is excellent basic American fare. It's a character meal (Mickey, Chip & Dale, Pluto), but it would be a good choice even without them.
Not only is it in the lowest price tier, but the last two years the CP package has cost very close to the normal cost of eating there. The only disadvantage is that it is the most distant from the amphitheatre where CP is performed. To be comfortable, give your self about an hour between finishing your meal and the starting time. Even with the CP package, you want to be there about 30 minutes before it starts. 15 minutes before the show, they open up the CP seating to all comers, so you want to be seated well before that.
PS: At Garden Grill, beverages ARE included, in spite of the CP packages rules saying they are not, because they are part of the standard GG meal.