Melissa,
Of course it isn't easy when you have a sizable collection, and I'm sure today I'll be strolling through my garden and see one I'll be bothered I'd forgotten to add. Didn't think too hard about it, there are a ton of other plants I absolutely love as well.
Lynn,
'Andinn Lady Midday' is an excellent choice! It is the only "Andinn" I have. The soft pink color is lovely and I really like the blunted leaf tips. My colony is just a couple small rosettes so I figured I ought to wait before declaring that as one of my top plants.