Mendez was injured for a fair part of last season. He still managed 7 goal contributions in 22 starts. Ojo has 3 goal contributions in 10.
Mendez more crosses, more key passes and more dribbles per game.
Also clearly better defensively.
Where they signed from is totally irrelevant so no, no he isn’t much better.
Mendez is proven at this level. Ojo isn’t.