The bryston is probably a better quality amp overall than the Outlaw's IMO. Although it is nearly 30 years old which is an age where things start needing to be replaced internally such as electrolytic capacitors mainly. If you take it to bryston for a check up im sure they will replace anything that may be so-so and bring it back to original spec however. The C270 you had would have also been a good canidate.

I believe there are also a couple of people here that use the Outlaw amps too so they may chime in. Even though I dont have personal experience with either of these amps If i were in the situation It probably would come down to how good or bad of shape the Bryston is in and what I really wanted in an amp. I dont think you can go wrong either way.