I usually hate SMF, to be honest - I've had it myself and out of the box I think its rubbish.  I've used many forums that ran on it, and most of those were pretty annoying to use in my opinion.

BUT, I think this forum is good.  I'm not sure what changes you've made, but it feels a lot slicker, smoother, and useable than most other SMF forums I've used.

vBulletin is better out of the box, but I've been on bad vBulletin forums too.

Surely its what you do with the forum software that counts?

Also, most users wouldn't know the difference between one script and another.  On here its different - we're all forum owners, but elsewhere, as long as its easy to use and looks nice, whats the difference.

Perhaps it is because everyone is so used to vB already.
All the major forums use vB.

Ya, forgot about IPB.
But still majority of these big forums are vB. Although there are some which are based on IPB. vB still reigns.

Where to look for what?
You don't like the navigation?

I like SMF also !