I think the A/B website is very good. They have a gigantic wealth of information so no matter how it's organized, it could be difficult to find things. The new front end looks a little better I guess, but I see no functional difference yet.
Siemens and Schneider Electric websites, on the other hand, also have a wealth of information, but I always end up doing better finding what I need there by starting from google.com
I spend more time on the a/b site than the others so I am probably just more used to it.