Some of us are puddlers (that's me!)
... some like to roll up into a log.
If you are doing long lines of quilting, you may find the puddle is easier, as you move from one area of the quilt quickly. Whereas, if you are working in one area for a longer period of time (eg. a detailed design within a central area), you might find the log to be quite convenient.
Try it both ways ... and see what works best for you!