I only really like the ones set in the past although the ones in hospitals are bearable.
I'd say my favourite is definitely 'Up the Khyber' although I love 'Henry', 'Don't lose your Head' and 'Screaming' although 'Columbus' is pretty awful.
Can't stand 'Emanuelle' or 'At your Convenience' and I tend to ignore the contemporary ones, even 'Camping' which makes me cringe.