In reply to Andrew.

It was kind of a tough call whether or not to add the comparison of file size between WP and Joomla, because these are two completely different CMS solutions, and for the most part, for different uses. But it was more for the fact that Joomla is a big CMS (I've got 8 yrs with it) and WP (I've got 5 yrs with it) is stll (IMO) a blogging platform (which it excels in)...and yes, I know that it's being pushed to be more than a blogging platform :)

Joomla packs a lot more features and capability, but the file size between the two are narrowing, is really the focus of why I mentioned what I said just earlier.

However, as I originally pointed out in the comment, that it's growing in size in the core.