I’m not sure I understand the question and what you mean when you say “client”? I guess that would depend on what one’s line of work is. As a web designer, when I am confronted with a client who asks me what blogging tool he or she should use, I base my reply on extensive questioning of the client and what his needs and goals are. I ask him to tell me who will be updating the site and what their technical skill level (with regard to HTML, CSS, PHP, etc.) is, what his immediate plans for the site are, what he envisions for it down the road, etc. While WP is just right for me, it may not be right for my client, but only after a bit of research can I give him any reasoned recommendation at all. Just because I happen to like something doesn’t mean it is suited for everyone. It also doesn’t necessarily mean that I am loyal to only one blog tool, since my web site is using TextPattern, and my husband’s site is using MT3.
A good example of WP not being exactly what I need for the task is my web design site. I found that TextPattern and the way it manipulates images and thumbnails is perfect for my portfolio. It would have been too much of a chore in WP.
On the other hand, one of the things I enjoy about my personal blog is writing about music, movies and books. So the Amazon plugins offered by Chaitgear and WP Amazon do this nicely, where they are more “hit and miss” in TextPattern.
It boils down to finding the application that has the features you can’t live without!
