I still put Luffy above Kizaru in terms of strength.
Now, Kizaru is very fast, continuously escaping Luffy, and targeting Luffy's friends too, so the fight is not going to be easy.
Luffy has to continuously interfere so his friends don't get hit by Kizaru, it's already showing that this is reverse Sabaody.
Now, this will possibly conclude with Luffy defeating Kizaru but this won't happen very soon as the other plots have to be resolved before the fight finishes.