IMO Die Hard with a Vengeance is way too underrated, I think it's a fun and enjoyable action flick and not a carbon copy of the first one like Die Hard 2 which I like much less. Although the ending could be a lot better, it's pretty anticlimactic.

Speed 2 is a little bit underrated too. It's not a great film by any means and the first beats it hands down but it's an okay 90's action film. Better than Die Hard 4 or 5 for example. And Temuera Morrison has a nice supporting role there and Willem Dafoe is always good.