CCM XS is the best holder IMO just based on the fact that you can readily find STEP blacksteel for it at retail.
I’d rule out the Tuuk Edge entirely given that it’s going to be phased out for that new ODIN/rental skate-looking holder in about 2-3 months. Not sure what their plans are to continue supporting it or manufacturing Edge steel but my guess knowing Bauer is they’ll want to funnel people into the new model.