I commute on road bikes and a touring bike. The touring bike is great when I have to haul a lot of gear and clothes, but I otherwise prefer my road bikes. My road bikes are faster, lighter and handle better than the touring bike. The ideal, for me, would be a sport touring frame that is still reasonably light but has eyelets for fenders and a rear rack. That will probably be my next bike, and I may just replace my touring bike with a sport tourer since I don't do any loaded touring.