@nirad3 I've had Zeke ranked #1 and I kind of think he splits the difference and has some of the best qualities of OBJ and DJ.
Bob Henry (I've always liked using his projections because he updates them during the season each week) has Zeke projected to outscore OBJ by 45 points this season in PPR. That's pretty significant. Almost 3 points per game. Zeke is also close to 3 years younger than OBJ. So the only longevity argument is injury/position based. I don't completely dismiss that, but Zeke has never had a serious injury. And if you're looking 5 years down the road, you're still looking at 26 y/o Zeke vs. 29 y/o OBJ. There's not enough of a longevity argument in favor of OBJ to ignore the 3 PPG advantage with Zeke IMO.
In looking at Zeke vs. DJ, you are giving up some PPG. Bob has a 68 point difference, 4 PPG. So you can make the argument for DJ based upon that. However, in terms of longevity, Zeke is over 3.5 years younger. Pretty big difference. It also feels like his situation in Dallas is more stable. He has a young franchise QB in Dak, 3 absolute stud young OL who are (or will be in case of Martin) signed long-term. Dez to keep defenses from loading box. Meanwhile, Arizona's offense is old with Carson and Fitz nearing retirement and no heir apparent at QB. Who knows how long Arians is going to coach, etc. Add it all up, and I will take the 3-4 PPG hit in the short-term to take the much younger back in a much better long-term situation. And going back to @FreeBagel point, I don't think you can expect DJ to keep putting up 25 PPG on 400 touches per season for long. But Zeke giving you ~21 PPG is much more sustainable in that offense.