I like the U-shaped ones best, as long as the legs are different lengths.
I hold the long side of the U while I slip the stitches onto the short leg, then I slide the stitches into the curve.
I move the cn to the front or back as needed, and since the stitches are in the middle of the U, I make the pointy parts point straight down, which means they’re out of my way.
When There’s Just One Stitch on the Cable Needle
Since I always load the stitches onto the short leg and work them off the long leg, it’s easy for me to tell if I’ve twisted the single stitch before I work it.
I don’t bother with a cn for two-stitch cables. Instead I just work the second stitch, then the first stitch, and then I drop them both off the left needle.