As to earning potential, I could see that happening for Leilua. Not sure what Chan is on, about 300k is probably about right. But he is also contracted til 2028. Which means either Storm don't want him, in which case I can throw the same argument back at you or he would need to be paid more to get him here.I think some desperate team like the Bears will pay him about $550k probably based on reputation … he just came off a $750k deal …
I actually think Chan is a better option right now …probably on about $300k
As for who is the better option right now, Leilua was actually playing very good attacking footy in an awful attacking team before he was injured this year. He hasn't got his spot back due to young guns that are clearly the dragons future securing the spot. His defence can be poor, this year and every year. It is still much better than Chan's. Only Chan is not an attacking threat at all.
Biggest reason I wouldn't want Leilua is he only ever applies himself (fitness wise) in contract years. If you give him a 2 year deal you won't be getting peak performance in that first year.