Neither!  The best and most widely used product for crow's feet is Botox.  If there are associated deep lines in the area, one of the fillers you mentioned (or any hyaluronic acid filler) can be used in addition to Botox.  I typically use Botox first in this area and then have the patient return in a week to evaluate the results.  If additional lines persist and the patient wants more of an "ironed out" look, then I use one of the hyaluronic acid fillers.  Good luck!

The best thing to use for crow's feet is Botox. This will deactivate the muscles of animation in this are which are part of the orbicularis oculi complex.  FIllers will not work to well.

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