That ain't pacifist chess 3.0! I'd know cause it's my invention! There are no knights in pacifist chess and besides Qxf7 would be illegal in pacifist chess as well as delivering checkmate.
Thoughts on the Ruy Lopez?

Well, I think I have the DEFINITIVE answer for people who doubt about RUY LOPEZ and every opening.
The core is: your DNA MUST fit the opening.
For exemple, if you are Mexican and live in USA for a long time; has absorbed the American Culture, then you can play English opening, or even The Slav opening.
In this case, sometimes your body (your DNA) will fight against the opening, because you still have some Mexican roots. But it is a matter of adaptation.
French Defense is good only for France citizens, for obvious reasons.
If you are not French, you will face troubles playing the French Defense, because your DNA is not compatible. Your body will react and you may feel unconfortable playing it.
English Defense is good for Americans, because of the American History.
If you are spanic and live in USA, you can also try The Sicilian or French Defense, because of the latin origin.
Remember, your DNA MUST fit the opening, or you will lose the game.
Yes, it is complicated, but this thing about DNA x best opening is easy to understand if you analyse THE CORE of the question.
AND RUY LOPEZ?????? It is better for Spanish and for latins in general, like French, Portuguese, Brazilians...
Well, that might explain why I love the Italian so much. I lived next to an Italian restaurant for 2 years, and it was during those years that I started playing chess regularly. Good times...
It is easy to explain. You live in USA, but you got some "spirit" from Italy because of your neighborohood.
That is why you feel confortable with The Italian. Your DNA accepts the opening; it is natural.
Yes, that must be it. And while we're on the subject of DNA and opening preferences... a lot of people here claim to like the Fried Liver Attack. I'd really like to see what their everyday diet looks like.

@macer75
I had a similar experince.
When I first started chess I played the Ruy Lopez.
However, I played it really bad.
Than I switched over to the Italian Game because it seemed a lot simplier.
After I got to about 1500 I tryed the Ruy Lopez again and fell in love with it all over again.
I play it exclusively now from the white side.
After 3.Bb5 black's has tons of different responses.
The mainline of the Ruy Lopez is with 3...a6.
In higher level the move 3...Nf6 is popular which is the Berlin Defense.
Obviously black has over a dozen playable variations at move 3.
I don't play 1...e5 alot against 1.e4.
However, what ever I feel like playing the black side of the Ruy Lopez.
I often like playing the Arch Angel, Berlin Defense, or the Cozio Defense against the Ruy Lopez.
As for 3...Bc5 that is the Classical Variation
Robert_New_Alekhine is joking on post 10.
3...Bc5 is playable for sure.

That ain't pacifist chess 3.0! I'd know cause it's my invention! There are no knights in pacifist chess and besides Qxf7 would be illegal in pacifist chess as well as delivering checkmate.
I mean 4.1, invented by ME.

No, Bc5 loses!!

wait...you mentioned pacifist chess. isnt this a thread about the normal chess opening ruy Lopez? I think introducing a line for the pacifist chess variation caused confusion.

ALL moves lose! Post a line and I will REFUTE it!
I disagree. I have never lost in a tournament OTB game as white in the Ruy, at lesat from what I know, but never lost with f5 as black (OTB)
3... f5!
You think the Ruy lopez Refutes Nc6
What if f5 Refutes Bb5
Go on, lets debate this varyation

ALL moves lose! Post a line and I will REFUTE it!
I disagree. I have never lost in a tournament OTB game as white in the Ruy, at lesat from what I know, but never lost with f5 as black (OTB)
3... f5!
You think the Ruy lopez Refutes Nc6
What if f5 Refutes Bb5
Go on, lets debate this varyation
f5 Qh5+! wins!

In Ruy Lopez sometimes may happen 4 doubled pawns!
Qxe5 Qxf7+ Kxf7
How does this lose?
It's pacisifist chess 3.0. King's can't capture.