"you could even go down to 3 stats for it" Is this option explicitly supported by the rules? How does it work? I never tried WhiteBox, but it does sound attractive....
So, White Box (fantastic medieval adventure game) is a cleaned up and streamlined version of Original D&D. You can get the pdf free, or printed book on amazon for $5. many people like it cause it plays very simply.
The 3 stats comment has more to do with adapting the sheets to something like bastards. or Cairn, other simple variations on adventure games!