Hi Alistar,
This test was performed in June 2007 by MVP Mr Wictor Zychla, summeraizing the results, there were a couple of glitches which occurred due to the fact that Wictor did not know how to use the internal optimization mechanisms of VWG and caused a constant replay of the same request. However, the bottom line is that in terms of requests per second and received data (which are the most important parameters) Visual WebGui is an undoubted winner, and I quote (from results section):
"The VWG is an undoubt winner. It did a great job of serving the highest number of requests per second, 422, and is also a clear winner regarding the amount of data sent to and from the server. The only problem with VWG is that it is still in beta version and is not reliable for the time (it still has stability and compatibility problems, let's hope it will get better every other release)."
Please note that:
1. As I previously mentioned, VWG optimization mechanisms were not properly used.
2. The issue with the non-reliable beta version was true to June 2007, but now, more than a year later; VWG is MUCH more mature and reliable!
I hope this will clarify the issue...
Regards,
Itzik Spitzen