[lmm]

That's an argument that 3/4 is the same as 6/4, not an argument that 3/4 is the same as 6/8.

If your phrases really go ONE two three FOUR five six then notate your piece as 3/8. 6/8 is for ONE two three Four five six SEVEN eight nine Ten eleven twelve, where beat four is significant, but not as significant as beat one.

Of course you do have patterns of bar phrases, not all first-beats-of-the-bar are equal in a larger piece, and where you draw the line between a bar and a phrase is ultimately a matter of taste and judgement. But a player will absolutely understand 6/8 and 3/4 differently; a run of quavers in 6/8 is ONE two three Four five six, a run of quavers in 3/4 is ONE two Three four Five six.