There are a lot of whites on the market but there could be a few more good cut flower options. White Nettie is an super productive plant but the stems get really weak. Others are beautiful but don't push the flowers.
I have been hoarding all my 20th Ave Baker Road tubers since it was introduced. I love it as a pure white ball option. I'm very excited about a seedling I have referred to as H198. It's been the best white my sister or I have grown and it also has super sturdy/firm petals. I wish HH Ms White was pure white.
Many times it comes down to the environment. I know other farms swear by their white varieties but when I have tried them they don't work for me. For the first time ever I had Blizzard shatter last year. Sometimes you just can't plan for odd events.