Mars is far more interesting than Venus. It has winds and storms at the surface. It has much more energy added to its surface during the day. Hell, it has a day, since Venus doesn't even have a temperature differential across the surface. Things heat up and cool down. Venus stays the same. The only thing that possibly goes on is volcanism, but even there, Enceladus beats it – it's having eruptions of water, and all the fun is happening in the water.