I've schlepped an RB67 on a hike!!!

The C330 is actually smaller and of similar weight than a lot of modern SLRs. And if you want several lenses, the package of body plus lenses is actually a very manageable size, compared to most medium format interchangeable lens cameras.
If size and weight are extremely high priorities, I carry an Olympus 35mm camera - either a film or digital OM, or an XA series fixed lens camera.
The Toyocaflex is a lot less refined than the Yashica Mat that inspired this thread - separate shutter cocking, no double-exposure prevention, and a very rudimentary viewing system that was probably dimmer than the (~20 year younger) Mamiya when both were new , and much dimmer than the Mamiya 70 years later.
I get real use from the parallax adjustment features and close focusing capabilities and wide range of accessories available - including the prism finder - but the core strengths of a TLR are the main reasons to consider the options available.
The cameras you are considering don't suffer from most of those limitations, but I can't comment directly on using those except to the extent that back when they were new I actually sold some of them, and my experience was limited to sales person's knowledge, in store handling, and customer feedback.
By the way, this was taken with the Toyocaflex: