Yes, I said one trillion times better! First of all, unlike xkcd or me, Dinosaur Comics is self-aware, and (generally) does observational humor well. Second, it's not intended to provide snapshots, as Saif said--there's no hint of realism here. This isn't a situation webcomic, like xkcd or Full House or Precious Moments figurines. Third, it often provides insights, and not just information. It's the difference between taking a class with your favorite professor and reading a textbook (or, I dunno, an online encyclopedia). Fourth, it's all about the journey. The pleasure is in getting there with Dinosaur Comics, the punchline is usually in the second panel, not the final one, and it's seldom the point in any case. In xkcd, the journey is a tedious exercise all about setting up the (more often than not) lame joke. SF-1, table P1. Ha ha, good stuff.
xkcd is like talking to your friend who probably has asperger's, and he starts droning on about the pinouts on his favorite processor package, and you're like, man, I wish I had some way of not talking to you/reading this.
"From what I've observed some birds are pretty gay." ~ Evilyn