Everyone wants to customize their website or tweak things to conform to the way they want it to look. WordPress is a great product, but I think it confuses people when they click the login link and get a page that screams WORDPRESS. Frankly, I'd rather that bit of confusion didn't exists.

This issue has always been an objection of mine to the WordPress login page. There was a time when that big 'ol logo linked back to WordPress too. That made things real confusing for site visitors. I'm glad they've atleast change that to link to your WordPress blog instead.