I like London Waterloo without the shops/stalls everywhere.
Liverpool Waterloo is my home station - was there on saturday and couldn't stop grinning ...and only £1.85 for a return into town AND the bloke in the ticket office had a joke with me despite my now ridiculously posh accent
I always try to arrange transfers at Birmingham New Street because there's plenty to pass the time with if you have to wait.
I love the way things sound in Liverpool Lime St - and passing through Runcorn because that means I'm nearly home
a good 1 is either euston in london and liverpool lime street.
Grand Central and Charing Cross - it has good memories :'(. I'm not going to bother with a worst station. Most of them are much of a muchness.