Zion is a generational talent and Adams is a solid roleplayer. In terms of defensive iq and consistency, this is an area where Zion has a lot of growth ahead of him while Adams has the benefit of his experience and can help Zion in his development.
If you're saying he's a statute well it's true Adams does some of his best work standing still, setting bone crunching picks. He is mobile for his size.
In any case if you appreciate tough basketball I'm surprised you don't seem to appreciate Adams, he's the toughest player in the league.