Super 2d/3d Graph Library is probably the best .NET charting component for most users: begining at 39$ (basic edition), royalty-free, free email support, PDF support, vector (SVG) and raster charts, same component for web and winforms applications, high degree of personalization, more than 35 different chart styles (2D/3D), advanced features such as chart combos, ClearType support, antialiasing, high resolution rendering (eg. 300 dpi), and more!