Two, for now. I still prefer Look or Shimano SPD-SL cleats, although they're not good for walking.
Scott Road Pro, which are well ventilated summer shoes -- basically sandals with rigid soles and just enough supportive material on top to do the job.
Fizik Tempo, for cooler weather. Not bad but not as well ventilated as the Scott shoes. And they fit inside my snug Peal Izumi winter shoe covers. Just Velcro straps, no buckles or boas.
I just use big platform pedals on my hybrids. And I've ridden my road bikes with platforms for months at a time. Not really much difference in speed and performance, but rigid sole roadie shoes support my arches better so I have fewer cramps.