Depends on use, Labs tend not to do so well at the wide open upland hunting. a little too short winded and not so tolerant of hot weather.
Shorthairs and spaniels can not take the cold as well as a lab or chessie.
There are labs that point, and shorthairs that work ducks like mad, but the norm is the opposite.
I have had two lab/springer mutts in the past and that mix seems to cancel out all the bad( however small) traits of both and gives a great family dog.
I will also say that i have had good luck in years past with other Mutts, the shorthair/poodle we had as kids was a tremendous dog, it was my moms all time favorite, I liked the lab/portuguese water dog but the hair was a deal breaker for mom, that thing shook in the spring time and it was like a hair bomb going off. My wife grew up with pointer/springer/irish setter mixes on her farm and they were all pretty good too, except for one which went nutso and had to be put down.
Not sure of the genetics but it seems a lot of the AKC dogs seem to have a lot of recessive genetics inside them to get that specific look, getting a mix breed seems to bring the good genes back to the front. JMHO.
Neighbors got a Vizsla, a hunting breed from the balkans. man what a pretty dog, and the thing has a nose.
instead of looking for AKC papers on a dog, there are several organizations more interested in output of the dogs rather than just looks.
www.ahdc.org
www.navhda.org
www.nagdog.com
are all groups devoted to dogs that function well both as hunters and as pets, vs the appearance only standard that the AKC seems to pursue.
Field trials dogs tend to be good choices too. although some of the higher bred dogs are real dynamos and require TONS of exercise to keep them happy.
and as i said, Mutts of the right stripe are often outstanding dogs.