I prefer yardage, but have recently picked up a few pre-cuts and I do mostly scrappy quilts, so I love the fat quarters, but often pick up more than one depending on how much I like it. I do only shop for fat quarters when they're on sale because otherwise you can pay $3.50 each or more for them & I'm on a strict budget. If you want speed & you're cutting lots of 2-1/2" squares, a jelly roll will save time & is easy to work with. It's really whatever suits your needs, but definitely shop the sales! I used to do the Fab Shop Hop which got me connected with lots of fabric shops online & I get some really nice sales sometimes! Good luck!