I haven’t heard the BHC, but have heard the Pendant. They are likely in different classes performance wise (also if one were to review the bill of materials), especially if the rest of the system complements and is able to reveal.
Compared to other A&S-built amps farther up the line, the Pendant has smaller transformers, smaller tubes, no input transformer, and cheaper caps. One can interpret this as that it wasn’t built to be end game for certain use cases. It’s a challenge for a 9-pin based tube amp to compete with an amp running 5U4G/5AR4 rectifiers, 6550/2A3 power tubes, larger transformers, and a more stout power supply.
The BHC is considered a top performer in the $1k or less category. The Pendant OG is also a top performer in the less than $2500 category (whether it’s level of neutrality or tube wetness suits is based on personal preference). Considering the use of more expensive components and more elaborate designs, TOTL tube amps tend to start at $3k – in response to your mention of end game.