I like the small thin pins with the different colored heads. I think they are called dressmaker pins. They are a slim pin and go in really easily. I use the plastic flower head pins when pinning the quilt back to the quilting table.
I have several boxes of the pins with metal heads. Don't like them, I also have a lot of the long yellow quilting pins hardly ever use them, then I have a lot of T pins. Never use them anymore.