The Nielsen graph clearly represents 51% Android as about 33%, apple's 34% as one quarter and the Blackberry als one-fifth. If you prefer readability of the labels over more-or-less-correctness of a graph which suggests it covers a full 100% and it's subdivisions you should maybe just use a table. As in Excel. A 30-31 x-scale is misleadin but showing 10% as 20% though is more than sloppy because you do show the "origin". This has got nothing to do with visually perfect.
The Nielsen graph clearly represents 51% Android as about 33%, apple's 34% as one quarter and the Blackberry als one-fifth. If you prefer readability of the labels over more-or-less-correctness of a graph which suggests it covers a full 100% and it's subdivisions you should maybe just use a table. As in Excel. A 30-31 x-scale is misleadin but showing 10% as 20% though is more than sloppy because you do show the "origin". This has got nothing to do with visually perfect.