Which modern ships fit the Battle and Weapon class names?

If new Battle and Weapon classes were built in the twentieth or twenty-first century, what types would they be?

Probably destroyers or small frigates, with Type 26 and Type 31 providing a rough modern analogy.

Destroyers are the first suggestion, although Trafalgar has already appeared as a submarine-class name. A small-frigate pairing is another possibility. In a loose modern analogy, Type 26 resembles the more capable Battle role and Type 31 the lighter Weapon role. Type 31 is judged to have more sensible capabilities than the historical Weapon class, which tried to put a large fleet destroyer's capabilities into a medium fleet destroyer hull.