Jacko - N
The GR1 AND GR4 does not have a better TFR than the F111
The GR1 and GR 4 does not do the speed that the F111 does [nor for as long and as low] It is quite limited in speed and wingsweep compared to the more flexible F111
GR 4 TFR 250' AGL year 1980 to 2002 Lots of annoying more 'nibbles' than F111 [F111 = Two TFR 1966 systems at 200 AGL and more flexible and functional to use [ie engage disengage and re ingage or interrupt as a pilot]
Night FLIR flying - GR-4 a winner
Night NVG flying - GR-4 a winner
BUT TFR OPS F111 a winner. Much better in mountainous terrin to boot. - something about min TF speed that requires a complicated explaination of the TFR equasion that I will not go into at the moment [even the Brits don't touch that topic]
EW I will not comment
I am not saying anything is better YET but just [hopefully] correcting some mis conceptions.
Mud Hen would be my choice as a pilot though, primarily for its self defence
By the way all, enjoy 'Flag.