It may not be the classiest chocolatier, but that doesn't make one of Britain's most popular chocolate makers any the less desirable. Filled chocolates, chocolate bars, fudge, and toffee are their mainstays, but the truffles are to die for (and there's an extensive selection). Come at Easter-time, and the gift-wrapped eggs are rushing out the door. At this branch you can enjoy tea, coffee, and pastries -- in addition to chocolate, of course. Tube: Bond St.