I've always preferred grouping. I suppose the difference is whether you want an alphabetical list of tropes, or a coherent list of tropes. For me, on a trope page, the trope with its examples is the important part, not the works that carry the examples. On a work page, the work with its tropes relate to each other is the important part, not the tropes by themselves.
I don't see lumping supertropes and subtropes together any different than lumping tropes concerning a specific character together, or YMMV tropes.
I mean, if you see that a work has a Five-Man Band
, you probably want to see who those members are, without hunting through the entire trope list. An alphabetical trope list is good for specific tropes, but a grouped list is better for the overall page.
That looks a little clumsy to me, and it doesn't do anything about the hunting down tropes bit.
edited 9th Feb '13 11:10:42 AM by AnotherDuck