Fwiw, I'm currently using on my HEMI the AMSOIL AEO11 due to the not so recently unavailability of the Royal Purple 20-820. I'll be using the RP on the next upcoming oci. ... from my memory the AMSOIL AEO11 resembles in appearance to the FRAM Endurance FE2 ... I'll compare those here soon for a look see.
The Fram XG2 has larger holes than the slots of the other two, which also appear more restrictive to flow. But it's a guess which is less flow restrictive without a flow test. Punching small slots is a cheap tool, that I know from manufacturing cost experiences.
Also, the Fram XG2 has wider media than the other two, it has the most filtration surface area. Again, without efficiency and flow restriction test data, we are left to deduce which might be best.
We know an independent lab tested a smaller Fram Ultra XG and a Royal Purple. Both had similar excellent filtration efficiency, and the Fram had demonstrably more contaminant capacity. BUT - the flow restriction for both was not tested in that test series.
A recent YouTube flow restriction test showed Fram Ultra XG being 20% or so more restrictive than a Mobil 1 oil filter, but the test did not include a Royal Purple Oil Filter *sigh*