I don't know why you wouldn't recomend HAL. It has an generally older crowd simply because it is more expensive but it is not exclusively full of ancient remains. It does not have drunken teenagers in the hallways like some other cruises, but there is usually a good variety of passengers from very old to children.
If you are looking to do nothing but get drunk and loud then stay away from HAL. If you want a cruise that isn't full of that then you might look at HAL.