[Newbies] which code browser to use?

Hi,

What are the pros and cons of the different code browsers I see in my image (it's based on Damien Cassou's squeak-web-95-2.zip). I see:

* Browser (appears to be the default) * HierarchyBrowser * OBSystemBrowser * ShoutOmniBrowser * eComspletionOmniBrowser * Tric-RefactoringBrowser * WhiskerBrowser * OmniBrowser

I find myself switching between different browsers and not finding one which provides a superset of browsing functionality.I feel must be missing a trick. Is there a prefered browser amoungst more experienced users?

How do I register a prefered browser as the default for alt-b and tools tab->browser?

Thanks

Nick