Civilian. Any time counts, but in my unit the guys that got selected frequently had 500+ and were CFI's, or flying light twins, or regional FO's.

In the old system you had to get 'FAR'd' (fighter, attack, reconnaissance) qualified in T-38's. About 30% were. Those were the top guys in the class. Getting FAR'd meant you could get a FAR assignment. Now it's a dual track. After T-6's they split you into the heavy (T-1) or fighter (T-38) track. If you under-perform in T-38's they have the option of putting you in the T-1 program.

Right now the large major airlines give you no credit for helicopter time (RW). A couple of the smaller majors give you some, or complete, credit for your RW hours. In general you need a competitive fixed wing (FW) resume to be competitive, especially at the larger majors. Helicopters are a hoot but they're a tough career choice.