I am also interested in both, as they are small. I would have gone with micrathum, but am very interested in the runners or stolons of armeniacum. Eventually I will get a good representative for both. I always buy blooming size or near blooming size. I do better with established plants. It would be very hard to decide.
Cant find an alba; YET! Ive gotten a new aattractions, paph delenatii, vietnamense and malipoense. Still going for armeniacum and micranthum. Any care on my new attractions i ordered and will be arriving next month!