Who do you think would win?
Here are the match ups.
350lb tiger vs 350lb Jaguar = Jaguar wins (I love tigers more but i gotta be honest with the Jaguar at equal weights, it will most likely win).
350lb lion vs 350lb Leopard = Leopard wins (Lion has the least cat characteristics and is a poor fighter over all, at equal weights the leopard will overpower the lion).
350lb Cougar vs 350lb Cheetah = Cougar wins (Cougar is a ferocious beast & is way stronger than cheetah lb for lb so it will easily take the victory.