I think that the easiest platform to use for blogging would probably be WordPress. It’s easier to curate content, and you can specify what it is you want to do, whether it’s add a photo, or video, or just a blog post. It also has a prettier presentation than the standard templates via Blogger!! I do, however, still really like Tumblr, but I like Tumblr for re-blogging other people’s content, and not generating my own. 🙂
The most options available on these different sites for layout and design definitely are on Tumblr. There are more templates and custom made banners, fonts, etc. than on any blogging site out there. (Am I right?) I enjoy updating the theme constantly on my blogs to provide new inspiration for things that I post and just for aesthetically appealing purposes (duh).
WordPress, as I mentioned before, appeals to me most because it is the easiest blog format to use and it looks very pretty. I even bought my own domain on WordPress because I genuinely enjoy the layout and how it looks. WordPress also generates the most followers that I have because I also promote my work via Twitter and Facebook, because this is the blog that is also my own personal website. That’s all on my thoughts!