I like corellas. We had them out west when I lived out there, so to me they're a bit of the bush on the coast. They are noisy but they also mind their own business - not like lorikeets which are noisy and in your face.
They have to drink on a daily basis and so I keep a couple of bird baths around so they can. There's a small concreted dip under our tap in the front lawn and it's the place the corellas favour for a drink. They come in a group of six or so and take turns having a drink and a wash. Someone squarks and the next one gets in. It's very funny to watch.