Ppr flex Mostert or Robinson

Having trouble deciding who to flex
Mostert
or
Wandale Robinson…

I just not sure if Robinson has more upside sense the trades that both teams have made. Before wilson JR it was a easy choice. Now I am not sure.
What do you all think… am I overthinking it? lol

Thanks

It’s PPR and one is a WR and the other is a RB.

There’s your answer.