"Borton Traffic, G-ABCD, FINAL Runway 09" seems pretty clear to me.
It's clear if everyone hears the entire transmission the first time, the same frequency isn't in use by several airports at the same time, and everyone is flying the same size traffic pattern with the same type of aircraft.
If someone is going to use their callsign, why not include the aircraft type? I can't read your registration number from a mile or two away, but I can tell what type of aircraft you are. If three airplanes end up competing for the same spot of airspace, one a Cessna Skyhawk, one Piper Warrior, and one a Learjet, G-ABCD won't tell me much. If instead, I hear "
Borton traffic, Skyhawk G-ABCD, three mile final, runway 09, Borton," I have a much better idea of what type aircraft is calling, where it is (three mile final as opposed to short final or ten mile final), and what to look for.
Some get a little too carried away, especially with accurate GPS indications, and one hears call-outs every half-mile from thirty miles away (Warrior 86X 11.3 miles west, etc). It's useful to know, however, if one is on quarter mile final, rather than a fifteen mile straight-in.
There's certainly such thing as too much verbiage, and that's not good either. The pilot who call in, "
Yadalahooie area traffic, Cessna skyhawk November Niner Six Foxtrot Bandana Ringworm is about sixteen miles west of Hansons Pond near the old grain silo, heading more or less east. We're about eight thousand feet, planning on landing on runway six, and we're figuring on flying over the field for a left downwind to six. My sign is Leo, I'm wearing a green plaid shirt with black shorts, my turn-ons include cats that don't shed, lawn mowers, and flat beer. I like long walks in the rain, refried beans, and the color blue. Any traffic in the area, please advice, Yadalahooie." Perhaps a little much.