British plugs are worse to step on, not because the pins are any worse to have jammed into your foot but because the design of the plugs means that if you leave one unplugged on the floor there's an excellent chance that it ends up in caltrop configuration with the pins pointing upward, whereas a US-style plug is (I think) more likely to end up with the pins pointing sideways where they're less likely to hurt your foot when you step on the plug.

But in all other respects the British mains plug design is really rather good. It does a good job of making partially-plugged-in plugs still safe, it's nice and robust, it readily stays firmly plugged in, etc.; US plugs are much worse in these respects and I think so are typical continental European ones.