Odhanan
Adventurer
I'd go with OD&D (1974) and Supplements, or Rules Cyclopedia, personally. But the two are very different beasts: the first is basically for me a tool kit to "build my own D&D" from the source, the second is a rules set I would run as it stands, for its own merits.
Doesn't mean one is superior to the other: just means I see their purpose and utility at my game table as widely different.
Doesn't mean one is superior to the other: just means I see their purpose and utility at my game table as widely different.