I love a good London Porter. Dark, toasty and just all around wonderful. Sadly, it's an out of style drink and the only one on sale around here is pretty sad.
I don't have a favourite brand, as part of the joy of living in the UK has always been having a constantly revolving selection of guest ales, which are mostly great, or at least good. I really miss the Peterborough Beer Festival, which I'd missed for personal reasons for a few years and it's been cancelled the last two because of covid. Here's hoping for next year...