If you are planning to have the blog hosted by the company (either at BlogSpot or WordPress.com), then I would say WordPress is the better choice because it gives you more flexibility built-in.  Widgets and themes are WP's hottest features - you can change the look of your blog with a single click, and you can easily add in anything you want on the sidebars.  Blogger lets you do these things too, but they take more steps.  However, with WP, you are limited to the themes they allow you to choose from.  There's a lot of them, and many of them are excellent, but Blogger lets you pick ANY design on the web - you just need a little HTML knowledge to put it on your site.

WP is definitely the choice for "geek" bloggers - people who want to make money using their site, customize their site, etc.  Blogger is for people who just want to write and publish their words on the web without a lot of fuss.