If you want to know how many of these suggestions I followed.
From the DC list I have:
Action 17 and 21...still looking for 19.
I missed Superman 2 several times on ebay but picked up Superman 6 from a local collector.
I have Batman 3-10 but all in rough shape or incomplete.
Detective (biggest mistake was waiting for this one...everyone wants a copy of 33 and 35)
Adventure 65
More Fun 64 and 81 plus a bunch more
All Star (he says only 2) but I liked 11, 12, 13, 14, 16, 17, 18 and 19
Star Spangled 14 and 18
Boy Commandos 2
All American 8 (probably incomplete)
Flash 9 (sold my issue 5)
Green Lantern (none of the early issues but a few later copies)
Sensation (issue 3 which is hard to find)
I could probably go on through the whole list but you get the idea. Collecting Harvey, Ace and Centaur was a little more difficult but I have a few. Some of my favorites are the anthology titles that are on the list like King, Ace, Popular and Famous Funnies. Thanks again Ed.
OK, I got a Detective 54 which looks a lot like 33.