you will find that there are people out there that *gasp* hate XSLT for many
reasons;
- XQuery people think its a bit wimpy in real data situations, true but its
simplicity means it gets adopted, even people who use XML have some problems
with XSLT. The fact remains that XSLT solves most of XQueries use cases.

Even better: Use a highly optimized XQuery engine to
query the terabyte data pool and produce XML, then
use XSLT to transform the query result into the
desired presentation. Concerns separated, everybody
is happy. No need for extremists, on either side.