The comparison is not just limited to Wordpress Vs Drupal. Things are messing up now and very soon we may see the ultimate CMS Wrestling Fight - Matt Vs Dries. (Thanks, Peter nice post and interesting facts about the founders of these two CMSs.)
These guys are totally against each other. Dries' Mollom may soon offer serious competition to Matt's Akismet. Mobkarma predicts this fight is really going to get more dirtier - wptheme vs druptheme, wpplugins Vs drupmodules and so on. So many bloggers will change sides, lot is going to be written about, lots of blog casualties and much much more disasterous stuff that we can't even imagine.
Drupal is trying to be monopolistic and Dries has other partners in crime. Now, we really don't know what issue they had with Pligg a opensource Digg-clone. Now they have positioned Drigg Vs Pligg. So Dries is your plan - 'all your communities belongs to us". That's a very evil plan.
Hey but wait somebody just called Wordpress destroyer of CPUs. Is that correct Matt?. And, we also know that you are eyeing on to provide a personal twitter alternative. How can you do this Matt, when at one end you say 25% of blogs are spam. We are all watching you Matt, better be careful with your words. You have a big share in the already existing 25% blog spam share and not you would create micro spam blog engines to add further.
What is this guy on?