And one particular need I had that GMail couldn't do was the ability to apply a label, skip the inbox, but only if my exact e-mail address wasn't in the To or Cc fields. i.e., a message sent to a list should always have a label and skip the inbox. However, if I was also directly sent the message, I wanted it in the inbox.
My apologies, I'm certain I'm not understanding you properly, or I need clarification. To me, it sounds like you could create a very simple filter to do what you want: -to:me -from:me
Wouldn't that accomplish it? Maybe also add -cc:me ?
Gmail has instant and relevant search. I don't need rules.
I completely agree with this. As a result, I never delete anything and it all gets labeled and archived, but I never even look at my labels. I basically just have the inbox and everything else, and a simple search can get me any email I'm looking for, far faster than drilling down through folders.