Text, Buttons Or Banners - What Works Best?

According to a post by Simon Penson of eConsultancy conversions from a corporate web site are best served by buttons, with the the traditional banners trailing a distant third.
The research was conducted on a casino web site over a period of 12 months and with a sample of approximately 10,000 visitors.

On the basis of these finding it would seem best to avoid placing too much of your advertising budget on web banner advertising.