Currently, in terms of features, Harvest are obviously way ahead. Our goal is to improve on the time tracking process, which is what we feel is lacking for serious multi tasking freelancers. At the moment this means a sweet interface, and in the future, predictive tracking based on your work/location/history. It was a struggle to launch this base product knowing that there is currently no 'killer feature', but we're hoping that getting feedback early will help us nail it.
