Dideved - 2:45 am on Apr 20, 2013 (gmt 0)
> I suspect you're a mind reader or you're familiar with Joomla 2.5 :)
Mind reader. ;)
> If they both work, I'm hoping Lucy will weigh in with a best practice.
For what it's worth, the Apache documentation can weigh in. httpd.apache.org/docs/trunk/rewrite/avoid.html#redirect
It says your way is better. :) mod_rewrite is actually supposed to be a last resort in favor of other directives designed to do a specific job (like redirect).
Optionally, you could simplify it just a touch by removing the domain name. Apache will use the current scheme and hostname.
Redirect 301 /rss.feed /index.php?format=feed&type=rss