Marvelous.
After100 years of airplanes we still don't have a a universal method of handling one of the more dangerous phases of flight.
One can certainly understand the differences that may be required to handle heavies, or even just jets, given their mass and the spool up time etc however it seems there is no clear picture even for SEP GA.
When I was taught (40 yrs ago) there was absolutely no doubt. Attitude for speed and throttle for descent was universal and the only way to go. Like a lot of simple things it seems to have been forgotten in a plethora of theories and complications. When I started again 5 years ago I was astonished and dismayed that my instructor told me to "hold the nose up with the yoke" all the way through the climb out instead of trimming for speed and no control pressure. I have even seendiscussions of pilots "Holding the nose down with stick on approach so you can just relax the pressure to flare" which seems to me to be the epitome of poor practice. Perfectly barmy.
(As an aside. If you get slow on approach the AOA increases. Lowering the nose not only speeds the plane up quickly but also temporarily relieves the wing load and lowers the AOA. (Adding throttle doesn't do that until the air speed rises. In fact on some planes the chage intrim actually increase the AOA with throttle. If you are near critical AOA that might make a difference.)