Without a doubt, mine is Fons and Porter's Love of Quilting. Every issue I find a quilt that I want to make. In the most recent issue, I found three! (Oak Leaf and Rose, Pinwheel Play and Christmas Sparkle - I'm definitely making the first one after the first of the year, and the others are going in my holding pile. I even know what fabric from my stash I'll use.).
McCall's Quilting, American Patchwork and Quilting, and Quiltmaker all have appealing patterns at times, and I often clip photos and designs for my inspiration notebooks. I read Quilter's Home for the articles, but Mark Lipinski's design aesthetic does not jibe with mine at all and I'm letting the subscription expire. None of them appeal to me like Fons and Porter. It's the only magazine than I devour when it arrives, muttering "Oh, that's great!" under my breath and dog-earing page corners.
Their designs are what I call "updated traditional". Their patterns are firmly rooted in traditional designs, with just enough modern use of color and layout to make them fresh and new. They seem to appreciate the history of the craft. I have nothing against abstract quilts, pictoral quilts, and all the other design innovations in the art, but they're not me.
Keep 'em coming, Fons and Porter. I'm waiting.