I own a Camillus Pilot's knife (might be issue, bought second hand) and a Spec Plus SP-5, which is the bowie and not the same model you're asking about. I can't comment on the SP pilot's knife directly, but I did do a review of the SP-5 bowie from a fit 'n finish perspective posted somewhere on BF.c.
My thought is that you're probably concerned with QC, fit and finish as opposed to improved functionality. I think both blades are 1095. My Camillus is parkerized, my SP-5 coated with some epoxy. Both coatings have held up fine.
Both hold take and hold good edges. There may be differences in heat treat. If the SP-5 is truly MILSPEC or better you'd be hard pressed to find it without extensive side-by-side comparison.
Functionally, I'm guessing the Camillus vs. the SP are probably very similar. I'd recommend that in either case, you get to handle the knife before you buy. My Camillus might be a tad wobbly in the guard, which is common. The integral guard of the Spec Plus might not have that. However, my SP-5 has poor grinds. But it's not a wall hanger, it is a very functional user.
I like both. They do what I want them to do, albeit each has a different purpose.
Do you care about handle or sheath materials?
Mike