With Batman Forever I was 15, exactly the right age for it and especially to appreciate Nicole Kidman's slinkyness.
On the other hand I think I was a bit too young for Batman Returns at the cinema and found it very dull, though now I think it's the most interesting of the films (and by far the darkest, Dark Knight at least ends with some hope, the message of Returns is we're all fucked up and only getting worse), even if it is hard to love.