It's difficult to find a forum i like the feel of (in terms of the look of it and how easy/effortless and uncomplicated it is to use frequently).
everything else is great, there's a good deal of help available too if ya patient, just every now and then someone will make the forum look a tad too biased. i'm not leaving for that!! lol.
i find certain types of people go on certain forums, there doesn't seem to be many chav's or tossers on PF. I'm a massive piston head (petrol or diesel, if it's decent) and it appears a lot of the PF lot are too.