JetBlue's flight time #'s are all over the place. I don't think there really is "competitive" number, it just depends on where you are coming from (ie, furlouged major, commuter pilot, military, or corporate)
I've been updating the online app for over 2 years, twice per month, and finally got called last week for an interview.
My flight time is about:
2000 PIC turbine (1300 PIC turbo prop and 400 PIC turbo jet)
All civilian, furloughed major.
Type ratings in EMB120, CL-65, B737, B757/767
No letters of rec.