Mono pyro, Lyney or Arlecchino?

I'm building a mono pyro team with XL, Bennett and Sucrose (Don't have kazuha), missing only a main dps. Yes, i know Arle is a better dps overall, but i also heard that Lyney's kit is mainly focused on mono pyro teams, so i don't know if Arle can beat him in this comp. So i basically want opinions on which would do better on this comp.