'The Whites'

I find it hard to believe that this was the second–best football team nickname question you could come up with (after The Eagles for Crystal Palace).

What next? What nickname is shared by Manchester United, Liverpool and Nottingham Forest?

Preston's nickname is the Lilywhites; they were also known as the Invincibles for a brief period around 1888, when they were just that (except in the 1888 FA Cup Final when they came up against the mighty West Bromwich Albion).

Leeds are also known as the Peacocks - although, admittedly, probably not so much nowadays.

I didn't hear many cries of "Come on you Cottagers" last time I was at Craven Cottage; but at least it's a distinctive nickname.