Well, G-this is a very good question and you are getting some great thoughtful answers.
I have been quilting for 9+ years and still consider myself a beginner. There are just so many things to learn. I do try to challenge myself with new things and I learn something new with every quilt I make. Sometimes it is as simple as "what was I thinking when I picked THAT fabric" and other times it is a great new technique or shortcut.
I do have one pattern that I go back to time and again. It is called "Yellow Brick Road". It is a simple pattern that goes together fast. I decided when my first grandchild was born that I would make every grandchild a quilt out of the same pattern (that way no one can ever claim favorites) and this was my choice. I have used different fabrics each time and I am branching out in quilt design and so each quilt looks different.
My tastes in fabrics have changed a lot over the last 9 years. I started out as a big Debbie Mumm fan, then I went through a definite folk art period. Now, I am more into reproduction fabrics, but also find myself very much drawn to the brighter fabrics that are making their way into our shops these days. I guess I like it all and since I make a lot of quilts for others, I try to make something that fits their style. Though my choice of fabrics may change with the market, I do tend to stick with more traditional patterns.
I have tried lots of different techniques-paper piecing, machine applique with a blanket stitch, invisible machine applique, needle turn applique, chain piecing, etc. I guess I am still trying to find out what works best for me.
Through the years you will find your style--it will evolve as you do. And your style may change too. That's fine, we all grow and change in life. The journey is what is fun!!
(Like Patrice, I do not have a problem with wordy posts!!)