If you go to 4EdgeTalk.com and locate the archives, you will find a couple of dozen threads of discussion on the pros and cons of Gerber/Duracoat/Zeronine foils. Just do a search on "Duracoat". Apex is just private label Duracoat from Advantage Sign Supply. Make sure you look in the archives. 4EdgeTalk changed forum software about 5 or 6 months ago and was unable to import the existing threads into the new software.
This is one of the better threads, but by all means do a search so you can browse them all.