I have 1 panorama pro on my 10 gallon (8 white, 4 royal blue) and it would probably be enough to grow corals. It's pretty bright. I'm buying a second one though, and I was told I'd be able to grow LPS
and softies and maybe some easy SPS
with two of them over a 10 gallon. They're compact and easy to mount. I really like the color mixture of the white and blue panorama pro. It's not too blue and not too white. Kind of makes me think of icy ocean water when I look at it lol.
But, of course, color preference is up to you. If you do get a panorama pro, get the reflector with it. It makes a HUGE difference.
Here is one panorama pro with reflector over a 10 gallon:
I cannot comment on the stunner strips as I have never used or seen them. You'll get more wattage and power out of the panorama pros though if that's what you're after.