I rate them in the following order, Lyman, T/C, (almost a tossup between the two) then the Cabella's, followed in the distance by CVA and Traditions. Flinters need a bit more quality in the locks than a caplock, and the locks are the key. The Lyman seems to be the best of the group when it comes to the lock, with some finishing attention paid to the working parts. I find the T/C to be a bit "clunky", with the pan to touchhole alignment a bit suspect, but they seem to spark well and to function. Cabella's orders from another company, that has to meet Cabella's specs, and the Blue Ridge Hunter (long rifle) is a good rifle for the money, and a better rifle than their plains rifle (imho).
Both the Lyman and the T/C have good warranties.
I find the sights on the T/C to be a bit gross, leaving too much room for error, but they can be easily retro fitted with a proper, thin silver front sight, and fixed rear sight. The T/C has a host of OTC replacement parts, drop in barrels, tang sights, scope mounting (in the newer models). BOTH the T/C and the Lyman can also be retro fit with lock upgrades by a reliable smith.
So perhaps your choice is one of appearance, and budget, between the Lyman and the T/C?
Ld