i like numbers 1, 5 & 7 - the hdr ones mostly look much too overcooked: the shadow areas should remain darker than the lit areas, the hdr processing should only add detail to those areas without removing all suggestion of light and shade completely
the back of the arch on number 5 spoils it a bit because it's too bright and saturated, but you have the balance between light and shade for the rest of that photo much better than the others
number 4 has fantastic clouds but the rest of the image looks like a computer generated martian scene (created with a 1990's computer) - i would love to see these images redone keeping the darks dark, but allowing a little detail to show: in order to give the impression we can see into the shadows
i like how in number 1 the rock stack looks like an easter island moai statue