Garling has some mad hype going for him. But I really do like this match up and see the similarities. Cavendish is very under rated, including by myself, often an after thought. But really he is a rather big name on his own, young and he outranks other top talents like Bartolomeo and Sai.
Or rather Hakuba is no joke even when not in control, under Cavendish control it would be very hard to beat.
It's kind of like the difference between Kuros top speed (no control) and Luccis too speed (full control). Zoro vs Enma is a bit similar too with restraining/unleashing full power