I agree, HARD to choose just one. My favorites are my Quilters Rule rulers, I have them in all sizes and I grab them more than any others I use. I love that I never worry about it slipping. I also love my heart shaped clover markers (I have pink and yellow). The other thing I adore is my slanted wooden ruler holder. Its hanging on a piece of pegboard near my work space and I keep most of my rulers just an arms length away.