I've been happy with the Water Ridge dual flush toilets sold at Costco. They are low flow but very resistant to clogging. It has a feature that slowly lowers the seat or lid when you put it down, so that it doesn't slam down. The thing I like the most is the higher seat height. I'm 6'2" and my wife is 6" tall. The 16" height is more comfortable than standard height toilets.
I take that back, I think the thing I like the best is the $80 price tag. I've replaced all 3 toilets in the house with these.
