You'd lose. I "am" a chemist. And any chemist will tell you that platinum is darned well HIGHLY reactive. The mechanism of that reacticity depends on the specific reactions it takes part in---but it DOES participate in the reactions, and it sometimes changes electron states exactly as does sodium and/or chlorine--the key difference is that at the end of the sequence of reactions, it regains it's original electron state.
I know -- which is why I wanted to avoid the contest. But to dribble on my shoes a bit, what you've described confirms that platinum really is a different kind of beast in these reactions.
And anyway, once again, I don't think the fellow is really talking about chemical reactions in his solar cells.