What paid forum software do you like the best?

Hey,

Okay so we've got a thread about the best free forum softwares, and obviously MyBB is winning. It's about time we got your opinions on the paid ones.

Please don't vote without trying all of them, there's no point saying I like XenForo the best when you've never used IPB or vBulletin.

You can base your opinions on anything from price to ease of use.

Clarkie

I will vote for Xenforo it is very good and powerfull software that has many unique features and a great UI.

vBulletin