If you've ever shot 3Gun using a "c-clamp" method over the handguard, the Cadex will feel very natural.
The whiskey 3 Gen 6 with the Enclosed forend is much wider and blocky feeling. But it sits on a bag really good.
You have to add an Arca rail accessory on the Cadex to get a flat base. But they do sell them now . The ergos on the W3 are better at the grip If you're not into wrapping your thumb around the back side , But if you change out the Cadex grip to a true vertical that changes that.
If you plan on slinging these rifles folded you might find that the Cadex is better suited. I believe it's the only one with a flush cup right near the hinge. Please correct me if I'm wrong on that. I've only put together a non-folding W3.
Cadex has better barrel heat mirage control IMO. Cadex can close over the bolt knob if you keep the CTR knob. W3 folds away from the bolt. Giving it more girth when folded
Both are excellent quality.
Molson Golden vs Sam Adams.