I think Unrealsoftware's forum is very nice.I am making my own forum and use some ideas of unrealsoftware.de
But I do not like some stuff of this site:
You need scroll to the top for manipulation on the site-I've made 2 types on interfaces on my forum+i want to add also 2.
Unrealsoftware.de have some lags with text position if you will change some firefox settings:for example,the panel of smiles is closing my text than i write,but my own site have lags with IE-stupid browsers!
That's all.
UnrealSoftware has a decent layout because it looks more colourful and because it allows for the use of adding user images and other things.
GameFAQs has a simple forum which doesn't allow as much as UnrealSoftware does. It's generally plain, boring and doesn't allow user images or anything else that UnrealSoftware provides.
There was another site I used years ago which had a similar approach to UnrealSoftware's forum design, the only exception being that user images were "member-only".