i have 2 or 3 knockoffs completed and so far i've been lucky to have high quality. they are only my office, but i prefer the real deal. plus, the knockoffs tend to scratch easier and can be much stiffer (twss) to snap together.
wish list (non-retired and a fraction of what i want lol):
the office - 21336
poinsettia - 10370
succulents - 10309
countach - 10337
kingfisher bird - 10331
titanic - 10294
tales of the space age - 21340
tuxedo cat - 21349
baby yoda - 75318 (retired but easy to find)
chewbacca - 75371
r2-d2 - 75308
c-3po - 75398
knockoffs (well "moc" since not affiliated with any lego sets):
dragon dracunculus
fairy lily bouquet
facehugger
thing
honeybee, butterfly, dragonfly
dogmatix
beetlejuice snake
random lightsabers