Quilting is supposed to be fun. Otherwise, why do it?
"Fun" is defined differently for each of us. Having said that, most of my quilts would be considered quick and easy. I am profoundly color challenged, so most of my quilts are limited to 4, maximum of 5, fabrics. More than 5 confuse me and it shows in the quilt. I found that out the hard way...
Also, I am somewhat impatient, my hands don't work like they used to, etc, so I like big blocks, strip piecing and so on. My absolute favorite quilt pattern is the old standard, the Checker Board. With the right fabrics, it is stunning.
I've made a few quilts that were so easy, yet unique, even I was amazed. For those quilts, I just 'saw' the quilt when I saw the fabrics. The fabrics literally told me what to do with them! That is the part of quilting that I really love - the giant creative leap that seeing fabrics occasionally gives me.