QFT. And it's so telling that many PF collectors jump on every chance they can get to hype their 300$ statue as equal or even better than the CM equivilent, yet the vast majority of them has yet to see a CM product live, let alone own one. There's a term for that and it's hearsay.
Sideshow focuses on likeness nowadays in order to cater to their customer base and it's probably the best they can do. The crowd will celebrate the next "homerun" based on a Prototype's facescupt and move on to the next announcement.
Comparing the costuming and tailoring on a PF to a CM is like telling your girlfriend that her new dress looks just like Galadriel after she went shopping at Pimkie. Even the CM's with their "premium" quality materials struggle hard to look authentic at this scale, how should a PF that shares synergy with 12" figures ever live up to that? It does work on some pieces where the original costume is made of basic materials/fabrics (Star Wars OT is a good example), but common sense would suggest that anything else (quality leather, silk etc.) is not going to translate into a PF in any kind of authentic manner.
The PF formfactor is great for their cost and the range of different characters they can cover, a lot of very tempting and original pieces available. But do yourself a favour and don't compare them to stuff that's entirely out of their league or, more precisely, has a different approach altogether.
It would appear as if you have not been to SF in a long time since the CM section there is dominated by an admin-backed forum troll with a gazillion of dupe accounts.