I think you are comparing apples and oranges. But like my mom would say "it's all fruit".
I'm going to start off by saying that I didn't hate PQ. I tend to find something to like in everything I see. Not that I didn't see PQ's faults. I just didn't hate it.
I've seen both Pirate Queen and Tale of Two Cities so I'll do my best to show why I believe ToTC isn't the fiasco that PQ was.
Pirate Queen was a story that only a small demographic was familiar with. Heck, I'm very into my Irish heritage and I only barely knew of Grace O'Malley. Tale of Two Cities is a piece of classic literature that most people have at least heard of and can quote. It's a name that people already know and the familiarity could draw an audience. There's one difference right there.
I also think more people can connect with the story behind ToTC. Sacrificing everything for love. That's an element PQ had but didn't have the same impact as ToTC.
The Florida cast of ToTC could totally wipe the floor with the cast of PQ. With the exception of the two female leads I felt the Pirate Queen cast was more or less forgettable. There were some absolutely amazing performances in ToTC and I really hope we see many of the same faces in the New York production. The only exception for me was Jessica Rush. She just left me kinda cold. Everyone else was spot on. I know much of the ensemble probably won't be joining the NY cast - many of them are college students in Florida. But the leads were great.
There were times when PQ seemed unable to hold my attention and my mind would start to wander. ToTC captivated me from start to finish. I was never bored and never once thought about what was happening outside the theatre.
So, that's why I think Tale of Two Cities won't be another Pirate Queen. I'm sure there are others who have seen both shows who could add other things.
"All our dreams can come true -- if we have the courage to pursue them." -- Walt Disney
We must have different Gods. My God said "do to others what you would have them do to you". Your God seems to have said "My Way or the Highway".