…if you’re looking to get picked up by Google, it’s Blogger all the way. Tag your photos, alt tag them, give them titles – all these options are available when you upload images and will bring the googlejuice pouring.
If you don’t care who sees your content beyond Uri Geller and the rest of the Sheffield Cutlery-Mongers, then WordPress looks much prettier and has a good range of template sites to choose from.
Blogger. Just blogger if you want to be seen.
Sorry but this is a complete load of toss, if anything WP has more advanced SEO plugins than Blogger. If you’re just tagging images (which you can do in WP) you’re barely scratching the surface.
OP, have a look at both and use whatever you feel comfortable with, if you want a simple blog then Blogger will do that, if you can see your self further down the line wanting more (a complete website?) use WP.