Bryston or Aragon

I have the next model in Aragon the palladium monoblocks.i had the 8008bb before that.for over 20 years no problems built like a tank.my aurum preamp was recaped recently and my repair guy said he could upgrade my amps.the output rectifiers were replaced with the same ones that mark levinson uses. He is a authorized dealer. The upgrade left me speechless. So long story short they can be repaired or upgraded. 

Owned three Bryston amps before I began to DIY. Recommend them highly - good, bullet-proof design, good implementation, unbelievably good customer relations and service.

Bryston is one of the best companies out there.

Usually there is no clear answer to the question. The best the OP can hope for is perhaps several anecdotes of poor reliability which could steer them the other direction by default. In this case both amplifiers are great examples of top notch design and sturdy build.

You really have two choices. 1) Buy the amplifier that your gut tells you is the best choice. Both are great and you really can't go wrong. It may boil down to buying into the story of one amp or the other. Or maybe you like the looks or one more than the other. Make a decision and don't look back. 2) Buy both amps and test them in your system. After a few weeks or months of comparing them pick the one you like best and sell the other one. If you got them at a fair price you shouldn't be out more than $100 in transaction costs.

Thanks go to pipebro for narrowing it down to two choices and providing a good context of associated equipment. The posts that kill me are the open ended questions of "which amp should I buy?"

aragon because magic wins over accuracy

When I was auditioning amps many, many years ago, I borrowed 2 Aragon amps.  A 4004 and 8008.  Both sounded great and what bass!  I love the sound of the Bryston cubed series, but the much older Bryston were known to be bright and wasn't for me.\