On my Real Madrid save I bought Draxler as a long term replacement for Cristiano Ronaldo, and with Cristiano and Bale as his tutors throughout the years of development, he won the Player of the Year-award (at the age of 25) and came second behind Gareth Bale on the Golden Ball.
So I'd say Draxxler all the way.
EDIT: El Shaarawy and Bernard are quite expensive, and they also get very easily injured; so it's a pretty risky investment. Although, I do agree with the fact that El Shaarawy is better than Draxxler if you leave all the injuries aside.