Victor Stone got a significant upgrade in Zack Snyder's Justice League. So much so that I think he may be a worthy challenger to his Marvelous competitor Tony Stark.
Tony gets all his feats from Iron Man 1 thru Endgame (MINUS the Infinity Guantlet). Vic gets all feats thru ZSJL.
1. Standard Rumbles Settings.
2. Hack-off. Both have same prep time, and try to override the others technological abilities.
Who wins?