Yes the Mighty is the bigger brother of the Crafty. Just heats up a bit faster. The heating element is the same just more powerful. The CU is a little bigger on the Mighty and so the Vapour gets cooled a little better.
Crafty is very portable and can be charged everywhere on USB. But for home use all that charging is a hassle. You only can vaporise 3-4 bowls per battery. With the capsules you can vaporise more but still I think you would be always mainly charging. But its great for a concert or the farmers market or an afternoon outside or so.
The Mighty is bigger, heavier and lasts longer, thats all.
For me the Plenty works perfect too. And it is smoother on the lung than the Mighty it seems.
All S&B's work very, very well, no question! No horrible taste anywhere, but no glass air path either.
Of course every model has its pros and cons. With each you can achieve a little different effect. Some need maintenance, replacements, cleaning. There are various versions of some models around. They cost quite a bit. Batteries are built in.
I probably seen and used less vaporisers than you
@ataxian,
But I think in the S&B NoBag section, with the Plenty you have it all (as long as you are near to a electricity plug)!
It can provide hits almost like a bong with the big chamber or sessions a bit like a joint depending on how you use it.