I can't comment on the Bare suits - never dived one.
Henderson suits are well-recognized and well-respected. Their primary marketing angle was originally a "super-stretchy" type of neoprene known as "Hyperstretch." Making suits out of the material meant that a wetsuit tended to provide a better fit to the diver - the key in reducing water exchange and thus warmth.
Unfortunately, super-stretchy neoprene isn't without it's downsides - the material tends to wear out quickly (because it's so soft) and crush more than "standard" neoprene at depth... So a lot of people found themselves having to get a slightly thicker suit to compensate, which added cost, weighting requirements, etc. and reducing the benefits of the stretchy neoprene (thicker = less flexible).
Today, many companies utilize the same type of neoprene, so it's no longer a Henderson-specific characteristic. In fact, many companies use a variety of different "grades" of stretch, so that the suit can tend to be very stretchy where it needs to be and more durable or crush-resistant in places where it can be.
One thing that I've noticed about the Hendersons is that, because the company has historically depended on their Hyperstretch neoprene to provide a good fit to the diver, they have deprioritized the "cut" of the suit. Consequently, I find a poor fit in the suit, but if I go down one size, it stretches where it needs to stretch and I end up with a decent fit. I'm not a fan of this, as clearly the suit would wear quickly because it has to stretch over my frame to become watertight.
...Which is why I dive exclusively O'Neill wetsuits. Arguably the inventor of the wetsuit, Jack O'Neill has been around for almost 50 years now, and remembers a time when a suit's ability to retain warmth was solely dependent on the suit's fit. Early on, the company developed methods of making seams rounded instead of straight so as to fit the diver's curves better.
Recently, the company has added differing degrees of stretchy neoprene to their latest batch of their high-line "Sector" suits. They are available in a variety of high-end dive shops, but I buy mine exclusively from Dennis at Austin's Dive Center in Miami, FL. I find that the fit of these suits is second to none, and now that they've added some stretch to key panels, they're unbeatable.
I have also heard good things about Pinnacle brand suits, but also haven't dived one, so I can't report from personal experience.