That prince is rubbish for the Knight's theme.
To me he looks more like a Superhero figure with that V shaped collar and matching cape. Seriously take a good look at it, take of his crown remove the sword put a big letter P on his chest and he then becomes Playmo Man. The figure then wouldn't look at all out of place stood next to SuperMan or SuperTed you would think that they had the same superhero Tailor.
I like the princess though she's not too girly and fluffy bunny looking, it's always good to get another female figure for the knights theme because there are just not enough of them.