Good Ajax Chart/Graphic Library

I know there has been several discussions on JavaScript chart/graphics libraries, and there is many out there. What I need is one that can: - Zooming and panning - Data point manipulation (like when click on a data point, highlight other data points within the data series with the same certain parameter of the clicked one) - Dynamically change data point values (e.g.: dragging a data point dynamically updating the line shape) - Error bar support, horizontally and vertically - Select data points on the chart Seems like Flot may have most of the features, if not all(not sure about 3, and 4), but would like to see if I don't miss out on there nice libraries.