The shepherd ones are usually easier to insert in tough ground. I used to use the v-shaped ones and had to bang them down with rocks, inevitably bending a few. I now use the shepherd stakes, and you just press them down gently with the bottom of your foot.
Btw, I'd get them at Zpacks, cheaper and faster. And you can get lighter ones, only 5.4 grams. I use the lighter ones around the tent, and two 8-gram stakes for the vestibules. If it becomes unstable, I can always put a rock over it, but have never needed it.