ORIGINAL: Charbroiled
1. Are pilots transferable between units?
Not Specifically, but they are transferable between pools. Once in another pool they may be redrawn to other units.
Yes and yes. Once a fighter pilot always a fighter pilot right? (sorry personal joke...)2. Do pilots still rotate "home" after an extended period, and if so, do the go back to the same type of unit when rotated back (i.e. fighter pilot to fighter units).
You can change one type to another, but only by upgrading an Air unit to a new type (ie. Fighter to DB). Once you do though your pilots Ground attack skill will be that of a fighter pilot...not good.
3. Can specific types of ships be targeted or prioritized for targeting (i.e. attacking the landing TF as opposed to hitting the carrier TF with 200 plane CAP).
No.