Hi Bat 21,
Like you I see Hawks, Harriers, VC10's, F3's but also a couple of GR4's & GR4A's so your theory might be a bit shaky :-)
A quick scan of MyLog shows also the following RAF aircraft;
Hawker Siddely Nimrod R1
Eurofighter Typhoon
C-17 Globemaster
AWACS/Sentry
If you include helicopters then;
Gazelle
Puma
Apache
Chinook
On the US Mil SIDE then I see quite a few F-15C Eagles & F-15E Strike Eagles and they are notorious for their scary sounding callsigns such as DEATH, GRIM, REAPER, MUGER, SNARL, RAGE, PANTHR, THUD, SHARK, DARK, STRIK etc.
Other US Mil apart from the KC135's, KC10's C5's, even more C17's include;
AF1 & its support entourage
Lockheed F-16
Boeing E-4B
Boeing RC-135S/U/V/W Rivet Joint ELNT aircraft
AWACS/Sentry
A10
And helicopters;
Sikorsky Black Hawk
Chinook
There must be other interesting Mil stuff that I have missed as I have over 14,000 aircraft in my current database.
There's plenty of stuff up there!
Kind regards,
-=Glyn=-