Are you up to your elbows in frequent-flier mileage? If so, you may have earned yourself enough miles for a free, first-class ticket to Europe. You deserve it. You deserve to be on an airplane and still be comfortable - to sleep at an angle less than vertical and eat something that looks and tastes like real food. But at 100,000 or mile per first-class ticket, you want to tchoose carefully. Ten years of business and personal travel left me with 1.25 million frequent-flier miles. A few months ago I started comparing first-class transatlantic services. My expereinces are summarized in the chart below.