I've had both English and Morrow, and Morrow is the one I'd take for one reason: he's like 1/4 the price for damn near as good a field general as English.
I had English in my Falcons franchise, and he never really panned out. He lost out on rookie of the year to Morrow on the Bucc's (who were a fricken dynasty powerhouse every year in that franchise. ugh). He definately never put up the ungodly numbers for me that I was expecting from his reputation. Because of this, my next franchise with the Panthers, I took Morrow and my results were roughly similar to English.
Neither one of them has really been the passing success as either one of my two Steelers franchises headed by Big Ben, who has a potential way below either Dane or Jack, but Ben makes the plays for me when it counts just about every time.
Well on my chiefs career, I had the 32nd pick and the team wanted me to choose some guy named Dane morrow. And I was like no I don't need a qb, I got Chad Pennington so no. Well no one was on the board so I picked morrow. Boy was I glad because he has been better than English in many years and to let y'all know I didn't know how good morrow was so I was so happy.