Artimax absolutely wins.
Better indexing because of without worrying about a single tiny dust speck clogging the tiny index lines of wow especially on bridges and arches.
Hinges are far more stable, with thicker supports,, allowing for better articulation adjustments by flaming/heatgun
Rear pin stops can be added and glued in on Artimax for cases without distal occlustion, or when working on a bridge or last molar to keep from under building or over grinding occlusion. Wows have no such provision.
The pins on Wows like to unseat, and seat unevenly, even when leaning into them, and this is a 235 lb guy talking. Artimax pins seat with mild hand pressure alone. However, we pop them back up and reseat before pouring because they will never seat that deep again.
Plus the pins extra length over wows pins allows you to hold the pin comfortably for the entire time whereas it is nearly impossible to keep a good grip on wow pins forcing you to pour a taller model so you can hold it, costing you more in stones.
I'm sure i've left something out...
Please excuse any errors of spelling as i'm not at a keyboard & it's after midnight