If you wanted to add a user forum to your software site, and make it look and work like your WordPress blog, what forum software would you choose?
Apparently bbPress has the same origins as WordPress, but is it best or are there other choices that are better?
Followup:
My final solution was to integrate bbPress 0.99 with WordPress 2.6. I have single login, integrated search, and identical styling for both blog comments and forum posts with combined user stats.
This used the basic integration with WordPress that bbPress 0.99 allowed, and inclusion of several bbPress plugins (many by _ ck _) that were heavily customized (read mangled) to my liking. The trickiest part was to get the cookies to work between the two.
The only downfall is I can no longer upgrade either WordPress or bbPress without a lot of work. But until those stop working, I'm fine.
If you're interested, see: www.beholdgenealogy.com/blog and www.beholdgenealogy.com/forum