I plan to play the Advanced Fianchetto (2 g3 and 3 Bg2) against 1...e5 and the Anti-Benoni (2 Nf3 and 3 d4) against 1...c5. Against 1...d5 I can play 2 d4 and transpose to the Queen's Gambit, which I can play with both colours.
But what should I play against 1...Nf6 or 1...e6? That usually means Black wants to play an Indian, which I don't want since there is too much theory in Indians.
It would be great if what I play against 1...Nf6 or 1...e6 leads to an opening which I can play as Black against anything except 1 e4 or 1 d4. Playing the same opening with both colours means less theory to learn and I understand the opening better.
If you don't like the Indian, then you can try this setup against e6, or Nf6 with: 2.Cc3 3.g3 4.Fg2, then wait before moving your d and e pawns to see how your opponent will react.
Of course i'm far from being a good player, and especially with the opening phase, but if you ask me, I will begin the game this way. Maybe stronger players could give you a more realistic approach though...
French: Chevalier = knight; Fou = bishop. The English opening starts 1.c4 so the only piece that can move to c3 on the second move is the knight on b1; the only piece that could move to g2 on the fourth move after 1.c4 2.Nc3 3.g3 is the bishop on f1.