I don't like any line against the french not even the nd2 line. Game is semi closed and hard to find breaks that dont weaken white's position. Only option against French is highly energetic dynamic play which is not always easy to do.
Against Scandinavian I hate everything.
Against Petroff I used to try Nimzowitsch system but don't like that either.
The entire 1e4 complex is highly theoretical and so c4 is a good start.
As white I like playing against the sicilian or e5 but not against French, Scandinavian,Petroff. Hence I do not play 1e4. Against 1d4 i like playing against d5 or nimzo or queens indian but not against Benko gambit or perhaps even Benoni.
Hence my first move is always 1c4. If allowed i will transpose to a d4 opening other wise a setup with Bg2 Ne2 pawn on e3 b3 c4 and such will be the setup i use. I also used to attack on the king side in a KIA kind of way but not doing it lately.
As black against e4 I choose c5 and if allowed go into Najdorf which I find good. As black against d4 I will go for KID or Nimzo indian if allowed. Against c4 I have nothing specific but rather adopt a KID kind of setup.
Please advise on this.