In our house, the ringneck is definitely the quietest of the three birds, with wee chatter time in the morning, evening and when I turn on the television. He's also the far quieter than my parents and inlaws galah and Sulfur respectively. The budgie, on the other hand, is the one that drives us most batty.
Keep in mind though we have a playstand and I'm home and in a settled environment most of the day.