My very favorite apple is Wolf River. They are a winter apple, get really huge, keep for a really long time and can be used for anything after they have been on the tree long enough to go through a hard frost. The frost turns them sweet. They can be used for baking before that. The trees bear heavily only every other year. Most people don't know what to do with such a huge apple. Two will make a good sized pie.
After that, golden delicious is the most flavorful, sweet and juicy. They can be used for baking, too.