Cricketers Southampton - not an away pub as such but a great little pub and I know it won't get over run with away fans who prefer the spoons nearby.
Used to go to the Ruskin Arms in East Ham until it shut down, just because Iron maiden started there.
Also the Plough near Seven Sisters on the way to White Hart Lane from the tube, before it shut down with almost every other pub on that route.
The Anvil in Wigan, but not been for ages due to Monday night games every time we played there since about 2010.