The opportunities for pilot and regiment next year are good so don't worry about lack of places. It is apptitude and ability that matter.
While aircrew/ATC/FC are natural bedfellows and Regiment seems the odd one out, the fact remains that many chopped aircrew end up going regiment. Clearly there is a certain appeal in this hands-on branch.
Opportunities after sqn ldr are also good as a Regt sqn ldr can be OC Ops Sqn on a frontline flying unit.
The suggestion for logistics is a good one and there should be opportunies to get grit under the nails. Post military opportunities are also good.