Just a 29 looking to make it sps softie tank.
My only experience with aquarium lighting is DIY LED's and Kessil. I highly recommend you see each fixture you're considering in person. Each light will grow and support corals just fine so much will come down to personal taste.
I absolutely love the Kessil shimmer, it reminds me almost exactly of what the ocean floor can look like at shallow depths scuba diving. It also most closely reflects the shimmer of metal halide lighting. My A360 was, and still is, hanging over my rimless 60 cube. Aesthetically, it can't be beat IMO. It provided plenty of light and I was able to successfully grow softies, LPS, and SPS just fine. Because Kessil is a single point light source I did experience shading on SPS. It didn't seem to affect health or growth. I also have 2 AP700's over a 220 but it just got fish in it this past weekend and corals won't be in for at least another few months. With the AP's the dual pucks should make the shading a moot point. Kessil also is great as it's largely a set and forget type of light. They don't really give you too much control over spectrum, and that's a good thing. You can adjust color temp and brightness(The AP700's let you control red and green channels too, but not sure to what point.) Kessil says that they deliver the proper spectrum for coral growth regardless of color temp chosen and, honestly, the results of real world hobbyist aquariums seem to bear that out. In your case, I'd start with one A160 and plan on adding a second if you start to experience shading concerns with SPS. Or, if you think you'll upgrade at some point, start with an A360 and upgrade when you have shading lol!
I can't speak to AI as I don't recall seeing those in person, but I was turned off of the ecotech lights due to the lack of shimmer and the disco ball effect where I could see individual colors reflected on rocks. Perhaps they've fixed that with the latest generation. This is personal taste though. They're great lights proven to grow coral. The bonus is they don't have nearly the shading concerns as the Kessil lights. It's a trade off and why I can't stress enough to do some leg work of driving to multiple stores if necessary to see the lights in person. Perhaps there are hobbyists around you willing to show you their lights as well.
You can't go wrong with any of your choices unless you end up unhappy with any of the aforementioned drawbacks. See them in person first and go from there. Good luck!