I have the S&W and CZ Bobwhite and Ringneck.
S&W with prairie chickens from SD last weekend.

S&W with Sage Grouse from MT Two weekends ago.

CZ Bobwhite and Ringneck with some snows from this spring on my farm.

CZ Bobwhite in KS from this last Jan.

Bobwhite with ND Ruffed Grouse from last winter

CZ Bobwhite with opening day pheasant in ND.

I have killed a pile of birds with the Bobwhite over the last 6 years. I have English and American doubles, but for a good servicable field gun the Bobwhite is hard to beat.
I just purchased the S&W this summer and have enjoyed shooting it. It has way better fit and finish, but it was also more money. So far I have about a 1,000 rounds through it with no problems. I shot a limit of sharptail yesterday after work with it. Very nice for carrying long distances when hunting prairie birds. It is the only negative thing I have to say about the Bobwhite. They are a tad heavy for that kind of hunting which is why I bought the S&W. If the CZ was not dependable I wouldn't be taking with to Africa next summer bird hunting. IMO the CZ is better than the Bakail. Probably not mechanically any better, but finish they certainly are. Plus they are stocked decently, not made to look like a 2x4 with barrels.