how to know they change it (if the X-Herders hidden) ?
out of my personal experience .. nginx is the worst (exept you have unlimited CPU Power)
Lsws does the same on our Frontend where nginx needed double the reccources and random crashes.
lsws now serves about 400pages/sec in average flawless on a dual CPU machine with 4GB memory,
not even using the laws cache.
nginx was on fire at 260/sec at most using double the memory on a faster machine.
so the ones "moved back" seems to have some secret we do not really know about
well i don't care anyway. laws does the job much slicker then apache ...
apache may be more extendable providing more ways on getting things included
and more modules available -> more features
.. but well in the end .. i need the code to be delivered QUICK and stable ... and this is what lsws does best.