Another very good app, the developer often speaks of the things done in MailDroid. For each user, it depends on what works best for them. You did the right thing by trying all 3 and finding one that worked best for you. I know users who have tried the mail app you like and liked MD better. It's always a matter of personal preference, feature-set (MD has a fairly sophisticated set of features not found in other clients) , and look and feel.