Netscape vs Mozilla vs Safari?

I'd appreciate advice choosing between the three browsers listed.

My basic situation is that I do more or less vanilla browsing on a Mac 
IBook G4, DSL connection, using Netscape 7.2 because Netscape is what I 
"grew up with" essentially since it first appeared; and I've been 
reasonably happy with it.  I'd appreciate convenient capture and 
handling of bookmarks, occasional capture of web pages or sites to 
downloaded HTML or PDF files; no interest in news or email capabilities.

Any good reasons for me to spend even a modest amount of effort 
converting over to one or the other of the other two?  (Thanks, but at 
this point I'm not interested in even exploring other candidates that 
people may want to recommend.)