I'm a little biased, my nzxt Kraken X61 ran for the better part of 6 years with a 4.9GHz OC on a i7-3770k. And I do like the silent profile Cam software uses. It was always silent-quiet, and gaming temps never got over 55°C. I was very happy with that aio. The CoolerMaster ML360R (not the L version) is also good, the Asus Ryojin actually teamed up with Noctua, and uses its ippc 2000rpm fans, the TT Riing, Corsair H150i Pro, nzxt Kraken x62/x72.
With most of those big aios, it's going to be more about the particular look you want over actual performance, even with the big air, the differences in temps are negligible. I could have gotten gaming temps of 51-52°C by moving from silent to performance mode, the sacrifice being more noise.
And that'll be your bonus with either big air or big aio, you have options for OC, noise, looks, cpu punishment with heavy loads. It's not alway about the actual number in °C as to which is better for you. My Cryorig R1 Ultimate is a half step behind the D15 in every catagory, basically the same thing, still gets 55°C gaming, 70°C stress. Just noticeably louder than my old x61, and doesn't have that nice software adjustable fan curve. So I'm at its mercy when it decides to ramp up with loads.
There is no right or wrong decision, you are already past any I'll advised budget cooler designs, so now it's upto what you think you want for the direction of what's going to fit your design.