A "dedicated" bomber pilot would spend a majority or 75% and up of his air time in bombers.
Same for GV's or anything else.
That would not necessarily be something to brag about.
For AH, I suspect the more valuable player would be one who can do most things well, including bombing, GV's etc.
The Ltar's come to mind, they did GV's well, but they also did fighters, combined opps field captures, etc.
They may not have been dedicated GV'ers, but they were well rounded and well respected.
Which is better, the "dedicated" player who does one thing, and only one thing. (1 trick pony)
Or the player who can consistently do many different things well?