I honestly don't get it as to why you have e-Sword users wanting to have features that other Bible software has when by and large hardly anyone uses them,
This gets into how people study the Bible. They like the simplicity and user-friendly user interface. However, they also want the components, functions, features, and tools that are appropriate to how they study the Bible.
from what I seem to see, nor do they want them.
Bob Pritchard's strategy is to get Libronix into seminaries, and from their spread into the general clergy community. Then, when somebody asks their pastor about Biblical software, Libronix is recommended, because that is what the pastor uses.
It gets purchased, then becomes shelfware, because it is not suitable for how the lay-person studies the Bible.
Having said that, it would be really interesting to see research be done in what features of e-Sword are used and are not used by users, and to see what the actual stats are.
in 2005 (¿2007?] Vaugn did a poll asking what resources were the most important. That is the only poll I'm aware of, that has implications about the features of e-Sword that are used.
My guess is that Verse Analysis and Sermon Illustrations are the least used components, with split screen parallel translations being the least used function. I'm basing this on questions in the various support lists, and web forums.
FWIW, it never crossed my mind to survey users about the components and functions that they used, and what thry didn't use.