Once I figured-out what your ASCII art illustration was a picture of, I would definitely go with the ASCII art. It bears pointing out that this forum is not email. That said, your illustration was created using a proportional font and is meaningless if rendered in a monospaced font. What this gets down to is that sending formatted email requires knowledge of your recipients' email clients, particularly if you don't use HTML. FWIW, 10-point Arial Black in an email message is colossally unimportant to me. I am certain that most of your potential recipients feel the same way. If you want to force them to endure your layouts, then use HTML.