I LOVE Rosebud cakes! I haven't purchased one in 2 years (last one was for my son's first birthday-- angel food cake, I think, with fresh berries) but we just attended a 40th birthday party last month and they served a chocolate "the most" cake. I also really like their hazelnut cake.
They are very generous with samples. I suggest you go taste a few and see which ones you like best. Also, you may want to ask if they still have a minimum cost per cake. If I remember correctly, they had a $300 minimum per cake. Enjoy!