Last year, I was trying to decide which one to get too! There are others in similar colours:
I like the contrast on this one!
Even a SA:
You can find more if you do a database search by characteristics for blue + reverse bitones.
I've ordered Wintry Sky:
because I like the overall paler/cooler look and beard colour and the dark-on-light veining on the standards. But I have no idea if it is a better grower or bloomer than any of the others.
According to the database 19 people grow
and 29 grow Wintry Sky, so you should be able to get some useful input!