Hi,
I tested mostly all of these plugins (excepted for WebP and CertQuickLook) on my machine, which is running El Capitan. Here is some new information on some plugins, some of them might be outdated:

• QLPrettyPatch: It does not seem to have any effect on the OS X default Quick Look preview. Last commit was made in 2013.

• QuickLookCSV: The OS X default Quick Look preview seems to render it better. FYI, the last pull request for this package was made in 2014. Even though there is some personal opinion of mine into it, I tested on one file and here you can see the difference:

  • From the builtin OS X Quick Look preview:
    
  • From the QuickLookCSV preview:
    

• BetterZipQL: According to the developer's website

  The BetterZip Quick Look generator has now been unified with and integrated into BetterZip. It's still completely free to use for everyone, only easier to install and update. Just download BetterZip, put it in your Applications folder and you are ready to go.

  Though the standalone plugin works just fine, any mention of brew cask install betterzip might not hurt.

• ProvisionQL: The plugin works. However, the BetterZip Quick Look plugin is also able to render quick look previews of .ipa files, with a lot more information in it.

Could someone confirm and/or discuss these findings ?