Don't look at me like that, I actually like the way to call both login and registration forms together a logistration form, well it's convenient.
I've designed a logistration form, but the problem is that I want to know which approach do you think you're more comfortable with, a single column or two column approach?
By the way I've read this article about Two column vs Single column
I'd actually like to know your own opinion, which one is better?
Two column approach?
And one column approach: