Interesting thread...
I have no experience with steam or not water heat, I was always curious but the cooling issue seems to be the biggest drawback.
That said I will put by properly designed Forced Air System up against any other heating system. The key is properly designed. The entire house is comfortable, no hot or cold spots, and you don't know it's running except for a little motor hum in the background. 'The fan runs 24/7 at low speed and the burners cycles on and off at various levels as needed, on the coldest days the fan may ramp up to a higher speed, but mostly the house is just plain comfortable and it's big, close to 4k sq. ft. 2 story with finished basement. 80k BTU burner that operates at much less than that most of the time, 96% efficient .
BTW, this is not a new house, it's 46 years old this month, and this is the third furnace we've had. Ideally I would like to add dampers and create a 2 or 3 zone system, that would make it the ultimate system, but the cost outweighs the benefits, but it could easily be done.