A yellow that I used to have that I really liked was Natchez Moon. I think it was a sib or half sib to Childhood Treasure.
Another one I like a lot I have not grown, but grows a couple miles away at my friend's garden. Moldovan's Starbase Alpha. My friend says it takes 3 days to open. Even a hail storm would not take down this flower - it has substance on steroids. It is not known for having poly flowers.