Looking for the best forum software



phpBB
vBulletin
SMF
IP.Board
myBB

Just some I could think of off the top of my head.
 
I just did a quick look around at these softwares, and it really depends on what you are after.

vBulletin is almost unanimously the favourite, but you have to pay for it.

SMF seems to have a great number of features you can add on for free.
 
Doesn't take all that long to code your own basic forum in php, just got to secure input and output and specify which tools to load based on user levels.
 
Yeah. Code your own forum from scratch! Don't use something cheap/free and tested!

When someone asks for a forum do they want..

forum.php
rooms.php
thread.php
newpost.php
editpost.php

and seo designed to their desire

or a full community including profiles, groups, albums, pms..

If you already have a site with those features it's easier to code your own forum than integrate vbulletin, phpBB etc and saves a fuck lot of time.
 
While I agree creating a barebones forum, would probably not take that long...especially if you were using a framework...why would you do that? There are plenty of open source options out there, with robust features that are pretty damn easy to install. Some of those are even in fantastico. It doesn't get much easier than that.
 
I like PHPBB, its difficult to mod sometimes but is very configurable and has some wicked themes. SMF is popular too, although I don't think there are enough cool themes out there for it. MyBB is an upcoming competitor which is worth keeping an eye out for. Its still early days but its getting better all the time.