To me, a show's theme has to fit in with the mood of the show. Family Feud's theme, of course, had existed before the show came into existance, yet was modified to resemble a "country" feel, whch helped give the show its All-American style.
The reason why I like PYL's theme as opposed to Whammy's theme, is simply that Press' theme seems like it was written by the way the show plays out. PYL starts out with a sense of intensity and excitement, and later closes with a sense of release and freedom, whereas Whammy is all duh-da-dum-dum-dum-duh-da-dum-da-dum with little wavering, and the show had WAY too much situational BGM.
I do think how much you like the show plays a factor, but then again, there's situations like NYSI, CBS Double Dare, or for some people, Second Chance.
Just my .15 cents, trying to make a dollar.
Tyshaun