I've looked at IP Board & all the others, in my opinion XenForo is the cleanest looking, least cluttered & most attractive forum I have seen. Love the facebook / twitter SEO integration too.
My web host runs php (5.2.12) in "safe mode".
Q. Does xenForo need php in "non-safe mode" just for the install?
or does php safe need to be turned off all the time for the board to run.
-or- is there a work-around?