I personally feel that the "mouse ears" family is highly overrated with the exceptions of 'Blue Mouse Ears' and maybe 'Church Mouse' (though CM is still too new to me to be sure). Too many of this unstable family revert to solid blue and too many of them look too much alike. With the exception of 'Pure Heart' above, all of my white(or light)-centred ones have turned solid blue. In general the sports, even after reverting don't grow as well as BME. I'm gradually losing all the streaking in 'Royal Mouse Ears' and I can't really tell the difference between 'Frosted Mouse Ears' and 'Mighty Mouse'. One I have with my "mouse ears" family, but which is from a different family, is 'Country Mouse'. It's a good little grower and really cute.
'Country Mouse' at the end of July - different family