I dare say this Mythos Obi-Wan PF is better than the original, mostly for the real fabric outfit. The original is pretty hard to beat and I actually think it was one of the best Sideshow PF figures ever made, but here we are.
One thing I liked a little more about the original, and it was a real stroke of brilliance on Sideshow's concept-making, was the two different actor head sculpts. They've continued that here, in fine form, but I still prefer the original head sculpt concepts over the two in this new figure. Why? In the original, the sculpts were more inventive and truer to the "Mythos" concept of imagining a Star Wars character like we've never seen it before; in the original the sculpts were slightly altered to expand the imaginative portraits of the actors, with a slightly aged Mcgregor and a de-aged Guiness. It was neither of the two exactly, but somewhere in-between in an imagined universe of Obi-Wan. I see some of that interpretative approach here, but the Guiness sculpt feels like it's too close to ANH. I know, it's an odd criticism on my part to desire a less than accurate sculpt, but I just liked the artistic interpretation that was there in the original Mythos Obi-Wan PF. That's what the Mythos line was all about.
There was a great era when Sideshow's original Premium Format (which is their proprietary name) meant mixed media pieces, like this one with real fabric outfits and leather/pleather and metal parts. In fact, Sideshow developed the PF format specifically to take advantage of the larger scale to exploit other materials that didn't translate as well in smaller 1:6 figures. I never bought into the idea of calling the PF format "figures", but understand where Sideshow was coming from, being a 1:6 figure maker at the time and wanting to distinguish the PF format from their regular all polystone statues. Back then the first PF figures were actually built on a wire armature and had a tiny bit of articulation, and the bodies were mostly stuffed with some kind of spongey material. There was hardly any polystone statue material in them, apart from the head sculpts and hands/feet.