I’ve played on all of these mate and own an XZ.
If it can throw it’s hat in the ring, the XZ wins - there is no contest.
Have a go on one if you can. I take mine to gigs sometimes and get small hire fees, too. But it looks and feels the part and professional DJs coming from nexus set ups really enjoy using it.
Edit. I would argue that the Denon SC6000 separate units are better than this but then you are back to 3 units.
Personally I don’t know any club owners or promoters installing any Denon. J00F has started appearing with them in clubs. The only DJs using Denon who I know are bedroom DJs. After this last year no one is buying new gear.
So I stuck to pioneer. Denon are too late to the game to be honest. And the CDJ-3000s are amazing which will eventually start filtering through, keeping professional DJs in the rekordbox eco system.