Piecing is my strongest point along with Math that goes along with quilting (as I was a Math Teacher it better be lol).
I am a little ocd on points and intersections and I would rather make a simple 4 patch 1/4 " larger and trim down to have exact size than struggle with uneven squares I often do demos and quilt how to's at guild as folks find my explanations easy to understand and often friends seek me out for help. I am also confident enough to try anything ... at least once!!!
I love color and enjoy the process of choosing colors but I often rely on EQ because I am really picky and always am second guessing my choices. My choices are usually "safe" which can results in beautiful finished project but not exquisite.
I am in awe of others (like Onebyone) who can assemble a stack of fabric (that I might not even give shelf space to) and create a quilt that is spectacular. The other skill I lack is patience for hand work - I love the look of hand quilted quilts but am glad that I have a longarm.