I love all of them.
When I lived in England I had a small greenhouse that housed 145 pellies, most miniature and dwarf ones. England is a great place for pellies and hardy geraniums. There are many nurseries around and the collections are gigantic!!!
Here in the US I can hardly find any. I know of two good nurseries inCanada and here there is Hobbs.
I love Mr Wren and I also love the baby birds eggs pellies.