Comments about tints for Seoul and Cree seem to be very much based
on personal experience, much like they used to be for luxeons.
There is a range of tints for both of these and they're both capable
of very pure white tints, as well as cooler and warmer tints.
As it happens, my 2 Seoul L.Es from the Sandwich Shoppe are both amongst
the nicest tints of any of my lights, including my luxeons which are supposed
to be superior in tint, if not output.
The Cree-XRE's in my A19 and XR19-C are both a bit warm
and the Cree in my Ti-CR2-XT is definitely cool.
My Fenix-P1D-CE has a very white tint and this is probably because it
has a WC bin.
I would guess that the 2 SSC-P4-U Seoul led's above are either X0
or W0.
When it comes to beam quality, I think the Seoul led's are superior because
of their lambertian output and therefore the reduced likelihood of
rings in the beam.