Do you find one or the other significantly easier? Do you have a preference to e-mail someone or call them? I find written communication easier, I don't know why. It seems like the words flow better, perhaps because I've done more of it in my lifetime. I think some that are very sociable may be different, and much prefer to talk. In the business environment however there are times I insist on talking to someone in person, basically if you feel there needs to be a a lot of interaction, or you need to read their body language. In the latter case then in-person is much better than phone, otherwise you get some silence on the phone and you're sitting there wondering what they think.