Actually, for all we know, the interior might all be the same. Until some one can dig up actual specs, no one really knows what's different. They do feel cheaper, though.
You can cut them open and compare build but what you really need most is the specs. WIX claims a PSI of 11-14 required for skyactiv engines on their 57002 filters which is in spec with the original Toyo-Roki filters.
I'd stick to any oem 302 version, Wix 57002, or Napa Gold 7002. All meet specs. Yes the Toyo-Roki version is the best in build quality but I highly doubt any of these would break. I've had excellent experience with Wix and Napa Gold filters in previous cars owned.