Ok Here are the Pros and cons of ipb and phpBB
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phpBB
-Way Better Support
-A simple forum
-A nice and friendly community
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IPB
-Have to pay for support
-More features than phpBB
-Easier to skin
-A solid community (Staff isnt friendly)
-They say they are keeping IPB free but I dont think they will.
I used to prefer IPB and now i like phpBB. Its more of a preference.