It's less about what method and more about what inspires me. I specifically created based on a string of lyrics that became the chorus. I have another based on a bass groove I had in mind and the rest fell in to place and yet another based on a guitar chord pattern that came to mind.
I should say this, they spend a lot of time in my head before I actually record them. I've found that a song fully renders itself in my head before I get it down including all the 'orchestrations' (ie - the different guitar parts, bass part, drum patter and other little things). I hear the whole song in my head before I commit to it.
different things in songs listen are for a variety of reasons so I think that reflects what I write and how I write it.