My current options: Anthem MCA30 or Bryston 3bSST2

I would think that the best option from Parasound would be the 3 channel amp, the Halo A31 at 250 wpc. Full retail on it is 3300, much less than Bryston amps.

The OP mentioned getting a couple of Bryston amps because they would fit in his shelving of 13 inches. Those two amps would run over $8000! Most amps are deeper than that, so I'd suggest buying a new shelving unit for up to $1000, buying the Halo A31 for under 3300, and being way ahead of the game financially. The Parasound Halos are very well regarded, I've got the A21, and it's superior to anything I've owned previously. Would it be the equal of Bryston? The warranty wouldn't, but don't kid yourself, the cost of the warranty is built into the high price of their amps. The Bryston might sound a little better or not. It depends on how one's speakers interact with the amp, and the rest of the system, and of course one's hearing preferences.

I know I prefer Parasound to the anthem gear I had.

I wouldn't say Bryston is high priced in terms of high end pricing. I find their products to be a good value compared to much higher priced units. Parasound is cheaper because it's made in Taiwan...I'd rather go for something built in Canada or the US and pay a little bit more.

Bryston amps cost thousands more than Parasound Halo amps, so I'd submit the characterization "pay a little bit more" is a little off. But that's fine, buy what you want and pay what you want. The fact of the matter is that most people want to pay a little less if they can. Nothing wrong with that either.

Thousands? Not really. The JC1s are $9000. Compare that to the Bryston equivalent, the 7BSST2 at $10000. And again, the lower price of Parasound is because Parasound is made in Taiwan. Bryston is much better quality, imo, and you do get what you pay for. Not saying that Parasound is junk mind you, but the truth of the matter is the build and parts quality is not really equal to that of Bryston. Although the JC1s do use Nichicon filter caps, that certainly is a plus.

Yes really. You've cherry picked the one cost-no-object(by comparison) amp by Parasound. All the other amps they make are thousands less. To my above suggestion to buy what you want and pay what you want, I'll add believe whatever you want. I'm not going to get into a debate over build and parts quality, I think John Curl designs speak for themselves.