My all time favorite flower, and not just at springtime, but all year round is the tulip. All colors, open or not. I prefer it much over the rose and I think the reason why I do is because they aren't as expensive as a rose, LOL, and when they come out I know spring isn't too far behind. I love spring and summer so much more than winter.
I don't have any in the yard, yet, but I hope to have some freshly cut within the house soon.