Thanks, NM Reb. You're right, I guess I am looking for a line that gives Black *total equality* or a perfect defence while still allowing him to develop ideally, and it seems, on the basis of the above anyway, that such a line does not exist due to White's first move advantage...
The main line gives Black a *better* position provided that he knows to play energically so that not to lose the development advantage. I mean this:
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5 c6 7.dxc6 bxc6
and now the main continuations are 8. Be2 or Qf3. After 8 Qf3 the best answer is 8...Rb8 (yes, sacrifice another pawn for easy development). Black is better but, if he plays quietly, White will catch up in development while maintaining the material advantage.
I think the easiest way to avoid the fried liver, something these people haven't been discussing, is to merely play the Italian opening.
Thanks, that was #3 of my original 3 candidate lines (see above).
It thwarts White's attack, but at the expense of Black not being able to put his g-Knight on its best square, f6.