It's been a while since I've looked at this thread, but you're right.
We've actually went about using the rules we like from B/X, BECMI, 1st, 2nd, 3rd, 3.5, AE, PF, TB, DCC RPG, and 5E and combined them all while jettisoning what we dislike. I thought about which to use as a base and 5E won...