Here are the 5 sites that I go most often to:
+Nice color scheme
+Lots of ways to get to a particular place
-Very busy
-’Ads’ for parts of the site just fill the page
+Wonderful concept (plug-in site for gaia)
+Very well organized right from the start
-No real ‘back to home’ button
-Some parts take a long time to load
+Simple, clear layout, changeable with holidays
+Very easy to navigate
- Page looks empty sometimes
-What exactly is ‘feeling lucky’?
+Easy to navigate, clearly labeled buttons
+Simple but pleasing page layout
-Sometimes switches to an uglier layout for no real reason (url bar calls it “Simpleball”
-Even though it’s an english site for a german band, some of the translations are a little off
+Practical layout
+Sticks to a color scheme
-Lots of boxes one may not use, but no way to delete (“New Stuff” “Invite your Friends”…)
-Limited customization beyond info and applications