WordPress : WordPress.com doesn’t allow users to edit HTML/CSS for free, if we want to edit then we need to purchase a plan. Blogger : blogger.com allow users to edit HTML/CSS for free, Blogger has less free templates compared to WordPress.
WordPress : We can create an unlimited number of blogs with unlimited writers and by default 3GB space will be given for storage. Blogger : By default users can create upto 100 blogs and having up to 100 writers and default 15GB Space wiil be given For storage.
WordPress : In WordPress, users can modify the WordPress script and host it on any server as it is open-source. Blogger : In Blogger, users can’t modify the script or can’t host on their own server.
WordPress : WordPress has its own Anti-Spam prevention script called A kismet which will not allow spam content being posted on websites. Blogger : Blogger has also anti-spam features but not secure. So users need to choose secure service for dealing with spam content.