While I have my favorites I don't write in any one particular style. But I will tell you what got me going more than anything and that was the three Beatles Anthology CD's. For me those CD's were a God send and they inspired me more than anything.
Prior to those CD's coming out I use to get very frustrated with my song writing efforts. I thought everything I came up with was about as lame as you could get. When the Anthology's came out I could NOT believe how rough some of those early takes were. Some were even downright laughable. I'm thinking, "no way. This is the Beatles for crying out loud!!" I then realized that one of the great things about the Beatles was how they found merit in an idea, no matter how lame it may have first been. So they worked on it, changed chords, altered the melody line and then they played it, and played it, and played again over and over and over and in doing so they found other ideas which became the little details that add so much.
One song that was not included on the Anthology's was "She Said, She Said." I'm telling you, check it out out. The rough beginnings are somewhere on YouTube and you're not going to believe it's the same song. It's just Lennon working on it but you'll get the full idea of what he was doing. He knew he had a good idea but he also knew he had could present the idea much better.
So the biggest lesson I learned from all of this was not to throw any idea away and do what the Beatles did: let it evolve. This is what gave me the confidence I needed to try and write.