In the article present at below link, I have shown the various usages of esxtop.
Apart from the mentioned one. You can use the esxtop in batch mode to capture the performance statistics of particular time.
You can take that output out from ESX on your windows machine.
After that you can analyze that output with tools like Perfmon and esxplot.
Tip : By default esxtop will capture the output at 5 second sampling period while vcenter shows the real time statistics at 20 second.