BECMI Dungeons and Dragons 17
Advanced Dungeons and Dragons, 2nd Edition 9-2 = 7
Dungeons & Dragons, 5th Edition 18+1 = 19
I did love the feel of AD&D. I'm in the camp of people who considered the "AD&D 3e" tag that some people applied to 5e back when it was released to be a very good thing :-D