The most influential and greatest one was WWD.

The one I enjoyed watching more was Prehistoric Park.

Prehistoric Park deserves more recognition.

Prehistoric Park is a fun ride all the way through

The one I've seen

PP or WWD, but I've only seen the latter, so it just barely wins the tie

I always use "PP" as the acronym for Prehistoric Planet so it's always confusing when someone uses it for Prehistoric Park