Seatons Lily was a standout for me last season - a section 5 - and the most gorgeous lower petals. Requires a little love but is the stuff of chrysanthemum dreams.
 
I grew 3 blooms to the plant you can see in the photos. Requires attention to keeping the bloom straight when the flower is opening - stake well! Also watch for moist conditions during flowering and do not overwater - petals can turn brown.