Not necessarily in every case. But the lowest common denominator is MUCH higher in fighters than in RJ's, so it's more of a known quantity. The RJ guy will have a an advantage in 121 knowledge and perhaps crew coordination (but fighters rarely fly solo, their buddy is just 30+ feet away instead of three feet away). Fighter pilots are almost assuredly on the accomplished and motivated end of the personality spectrum, while regional pilots are all over the map on that.

Also fighter time is almost all busy time. 2000 hours in an RJ really means maybe 500 hours of flying and 1500 hours of USA today.