Flat out Lillard is the best player on either team. It's not even close.
Some of WC's best players are in a harsh decline and constantly injured (BG) or are very old and it's fair to expect some decrease in effectiveness (Paul). Then the bench is a bunch of dudes I would never draft for this thing, like Fultz/Hunter/Barrett who have not proven in any way they contribute positively to winning. Graham is a solid bench scorer, but he's also up there for worst defensive player in the NBA. Jonas is solid as a backup C as well, but Theis is way better.
Em packed his team with positionally versatile defensive studs (Theis, Thybulle, Smart, Isaac, and Clarke) and really smart team defenders like Rubio/Hayward/Adams/Middleton) to complement a huge volume scorer like Lillard.