Happier with fewer messages. That means less crap I have to delete. I prefer just a few from people I'd like to hear from (friends and family). Both e-mail AND phone.
NOT spam, NOT spam forwarded from friends, either, unless there are naked women in it (thank you charlie and xibbumbero).
My answering greetings is: "Hi, either we're not home or we're screening... either way, leave a message and we'll get back to you... if we feel like it."