For me, I think that teenforum site is pretty good. Nice board style, with nice colour scheme, but that recent threads list is way too long and takes up a good deal too much room. It does need some non default smilies, maybe some avatars and probably some custom BB code, as much of that seems default. You should also change quite a few of the default images, as the default vBulletin images do not complement a custom style.

7/10 losing 2 points for non changed images and smilies and 1 for being a bit plain.

As for my site, doesn't take a genius to figure out, since I only run one forum, but:

http://dsultimate.net/Board/upload

dsultimate.net - I like the colours and the logo looks very nice. If anything could be done to improve the look maybe making the corners rounded would look nice with your colours.
Your homepage looks good as well but might be better if you center it. Apart from that, your site has great potential with a little bit of work here in there.

My site. www.gamezneeds.net/forums

Nice layout and WOW, lots of members and activity.

8/10

rochesterpokertour.net

The header + ads + welcome message are too big.

There is no content "above the fold" even on a decent resolution monitor.

The general color scheme is pleasing to the eye.

There are several spelling mistakes that make it come off a little unprofessional.

I'm not a fan of hidden forums, but I can understand why some are in this case. ;)

E-Mail Help Desk.

-Raymond

Nice simple and easy to navigate styling

Could do with a better guest description of what the forum is about as "email questions" is a bit vague

Big fan of styled adsense, so many webmasters don't bother

Looks like a newish site (0 members online when I looked) but certainly has potential the webmaster(s) are obviously doing work to add content.

The "New Article" GARS button needs to be fixed as the background is blue/black

The Rev Counter - Motorbike Forums, Classifieds, Reviews and more

Organization is alright, but the style is a little bland. 6/10

Nintendo Hub

Excellent forum

Good user database and great skin.

9/10

Oyobiia

Nice and calm skin.. slightly too many forums for my liking.. great content.. active members..

9/10

http://www.adminfuel.com

nice template, colors and look. I also love sidebars like here with lots of usefull information! 9/10

www.consolerforum.com

I'm surprising myself here but I like it. (I have an aversion to green generally, hence the surprise.) At first I pulled a face at the size of the forum/sidebar areas, but looking inside a forum and discovering that it expands there, I decided I actually rather liked it!

9/10 (lost a point because I don't like green ;) )

I can't link to my site as it gets messed up in the censor for org :) so as my sig says

http://itsab*tchthing.com - replacing the * with an i