[BeetleB]

Again, it's a question of whether you are trying to convey details, or look pretty.

If you add numbers to the pie chart, then you don't need the chart at all. The benefit of a bar chart is that you don't need to list the individual percentages. At a quick glance, you can get more information from a bar chart than you can from a pie chart.

But if you're not trying to convey details, a pie chart is prettier.