Scotch four knights for new players, plain Scotch for later.
Although (IMO) the only real challenge to 1...e5! is the Ruy Lopez.
Studying the Ruy will not elevate your rating, at least short-term. However, it will definitely make you a better player- the positions to study are a real chess school- incredibly rich strategically, yet full of unexpected tactics.
The King's gambit is an opening from the past- Black has about one dozen ways towards a comfortable game.
Thank you for the advice. I have started studying the Ruy Lopez
Alright with the Tortoise joke no one is laughing!
I am interested in the 4 knights scotch, I want to use against the petroff. I wonder how do I play against counterattacks in the centre, like 1.e4 e5 2.Nf3 Nf6 3.Nc3 Nc6 4.d4 d5?
BTW - Ruy Lopez is worth studying, I mess up the move order and got severely punished for it in many of my games!