In my experience, brewing a stronger beer doesn't help. If you're used to drinking say. four pints you won't be happy with less, It's the quantity, not the strength. I think the brewer's skill is being able to brew a satisfying beer that you can stick with all night without falling over. It's a cultural thing. I know the Belgians would disagree, but then they weren't weaned on pints.
Polypins are not really suited to lager styles nor Irish stout, where you need to have a carbonation level that would burst the bag. They're only suited to low carbonation so-called "real ales".
Traditional English ales are not citrussy. Stick to English style hops: Fuggles, WGV, Bramling Cross, Endeavour, Sovereign, Target, etc.