After a second look, Autofill magic is pretty sweet. It's intuitive and very easy to use, and is nearly 100% automatic. I actually like the fact that I can view every step of the Web2.0 creation to registration to article posting so I can make sure no errors were made.
Zennoposter/Ubot has a bit of a learning curve with regular expressions and loops/arrays, but it benefits from 100% automation.