Bryston is a far more well established brand. So if resale value or maintenance very long term are the issue, go Bryston.
Having owned both Bryston gear and the original LSA "Standard" integrated amp, I much prefer the sound of the latter. This is partly because I think I prefer the LSA "family sound" and partly because you can experiment with different tubes on the preamp section of the LSA and get vastly differing sounds. The amp of the LSA being solid state and heavy has serious cojones :) Combining tube preamp with solid state amp often achieves something close to best of both worlds.
BTW, I found the LSA sound benefited hugely from being left on all the time.