Based on my own experiences over the years, and assuming the qualifications of the three individuals were verified to be accurate, I would hire the ex-deconner every time. I am an ex-Navy nuc, also, but I vividly remember my first exposure to commercial nuclear power . . . an experience I've seen mirrored by many new ex-Navy nuc's starting out in the commercial industry. While I have my degree also, I'm aware that the degree just means I have a lot of theoretical knowledge with little to no practical experience. I've been a road tech, a house tech, worked in both commercial and government programs, and I've trained techs along the way. Based on over 30 years of experience, I would hire the (legitimate) ex-deconner every time.
But that's just my opinion . . .