I originally implemented b2evolution for this blog because I wanted multi-blog functionality. That is, the ability to host multiple blogs in one instance. Unfortunately, this is a feature not offered by WordPress my other blog engine.
My work blog over at aboutrestore.com relies on WordPress and I had forgotten how powerful that platform is. It is not that b2evolution is not powerful, but WordPress appears to have many more plugins and a very broad and active userbase. If I were to do it again, I would use WordPress here and bypass b2evolution and am still considering migrating.
Finally, this version of b2evolution is old and I am wondering whether newer versions are more intuitive like WordPress. Definitely worth a look since the migration path is easy.