Functionalists love this. So many choices. But what if you're into styling, or uniqueness, or brand, or something really different? Sure, Ducatis, Aprilias, Moto Guzzis and a host of European brands offer a radically different mix of looks, design and performance-as does Buell. But I keep wondering: With most manufacturers having settled on a basic sportbike orthodoxy-twins or fours, tube or spar frames, 17-inch wheels, inverted front ends, etc.-what's performance motorcycling's Next Big Thing?