Kessil is the way to go. Not only is it the most analogous to MH being a point source (so visually it will be similar in terms of shimmer, coverage) but you also have simplified color and intensity control as someone coming from MH to LED. Being used to MH, you might have color preferences a bit whiter than many of the modern LED fixtures and you have to be careful about many LEDs in terms of something visually pleasing may not end up the right intensity or color for keeping corals happy. Kessil is easy in that you just set the intensity and color on a dial as desired and it will automatically make a resulting blend that will be acceptable for corals.