Lance would curbstom. He has variety, skill, finese and a legendary aura that simply dwarfs Cynthia. As for his 'Mon...do I need to mention them?
And if that is not all, in the games Cynthia is ridiculously easy and my Pidgeot alone has always OHKO her entire team which is extremely flawed. Lance, on the other hand, makes me feel, from the get-go, that I will lose and spend a crapload of medicine on my 'Mons.
Still, neither of them hold a candle to Red...dear god!