Lanlan
Just another QJ I guess
Locks up
QJ
Very smooth, requires breaking in, no popping. In other words, way better than Rubik's
Can overshoot, bulky
QJ Mini
Fits in one hands easily, pretty much same quality as QJ
Eastsheen
Small, to fit ones hands easily, no popping, adjustable
Locky, and a pain to assemble requiring a stand
YJ
Speedy, smooth, excellent corner cutting, adjustable, comes partially premodded, and hardly locks up
Knock Off, requires a mod if you're willing to stop the misalignment, and the pops aren't pleasing
Mefferts
See QJ
Dayan+Mf8
Okay with speed I guess. I only tried one once.
Known to pop, pretty damn big