I read Dick Grayson-as-Batman during the Morrison era because the stories he told were good(well, when he had good artists; the less said about the Billy Tan arc, the better). I liked Bucky-as-Cap up into issue #50 because he was a captivating, interesting protagonist with a great story. I didn't like Miles Morales as Ultimate pider-Man because I though he was just a boring-ass character, so I dropped the book, it died with Ult. Peter Parker in my mind.
I read the stories themselves, and decided if I liked them or not. Not a bizarre concept here.