Jets
I believe the above comment to be wrong: the RAF will always requie more Jet Pilots simply because they have 250+ FJ and the RN will share about 40 Harier.
It's all relative. There is still more chance of getting FJ in the RAF; just look at a Linton course.
Is it still true that to get FJ in the RN it's normally after doing VERY well at Shawbury since there's no METS or twin seaters to stick the not-quite-good-enough for Harrier people into?