Which forum package are you familiar with the most?

[dutchbb]

I started out with EZBoard (now Yuku) for a few months, then to Ikonboard and used that about 6 months, then to vBulletin for more than 8 years now. So vB (3.8.5 ATM) for me.

 

[goyo]

vB and IPB equally from 1.x.
Had to switch from UBB as I had constant problems with it's text based/static database files...

 

[Lawrence]

vB 3.x, 4.x

but for now on XenForo,

 

[motowebmaster]

vbulletin 3.8x and IPB 3.1.x

I've tested vb4, but not in a while (can't get motivated to try it again). MyBB was also a serious consideration, as well as going back to phpBB. Focused on riding my motorcycle and content building at the moment. Looking forward to trying out XenForo in the future.