All jokes aside, it is beloved for a reason; it's a fantastic action movie. It's got excellent pacing, intense action, and a charismatic smart-ass as a main character.
I've always enjoyed how much more reserved Die Hard is compared to most action films. It knows to build towards its explosions and gunfights. That way they hit with greater impact, as we've been tensely waiting for them to happen.
The real star of the show is John McClane (shocking, I know). His resourcefulness and cheeky attitude make it very easy to root for him. He and the rest of the characters create a dynamic that really draw us in.
Well, surprise, surprise; the holiday classic lives up to its reputation as a fun action flick. If somehow you haven't seen it already, definitely give it a watch. This one is definitely a Good.