I came across this:
I'd be curious on this different perspective. Does none of that apply here?
I noticed a big change in the speed of my static pages, but none that I could notice in my dynamic pages. That could be attributed to my own setup. So, I did some further research. Seems like there is a 'new and improved' LiteSpeed since that article was written. Actually, there have been a LOT of new versions since that article!
I could not find any very recent benchmark test results. But, here are some things that LiteSpeed does offer over Apache (many useful to me personally):
LiteSpeed Apache Comparisons