If I had to choose from the ones you've pointed out I would say ruy lopez
Who is your favorite opening?
I'm afraid my favorites are the French defence, and the King's Indian Attack or Defence. I do play the Ruy Lopez, however, and I enjoy playing it every now and then.

whats your favorite color?
favorite food? favorite toenail?
Midnight blue, Aromatic Duck, Hallux Nail
(Yes, in that order...)

I'd like to point out that a number of these openings are not people. I'm afraid based on the question that the only valid answers from the list provided are:
Ruy Lopez
Caro-Cann
Pirc

I'd like to point out that a number of these openings are not people. I'm afraid based on the question that the only valid answers from the list provided are:
Ruy Lopez
Caro-Cann
Pirc
The English Opening was named after Johnny English, who first played it back in 2004.

I thought the English Opening was alternately named the Staunton opening after Howard Staunton, who also designed the chess sets that are used in tournaments today? Didn't he play it a few times in his match with Saint-Amant?
Err. Maybe my sarcasm detector is broken. It's hard to tell over the internet.
Who is your favorite opening?
Sicilian
Indian game
Queens gambit
Ruy Lopez
Caro-Cann
English
Pirc