The QS10 has great low end with it's HP woofer. If you plan on ATMOS skip it and go with the M3s. As Dolby recommends all monopole speakers for Atmos.

The M60 would likely be your best bet, the extra drivers will give you a lot more performance. Then get an ADA if you really need more oomph.

But start with your center first the 150 isn't enough for newer sound tracks. There's so much content in the center now that a 160 would be the best first option, plus the 160 also has very good Bass capabilities and dispersion. Ultimately you may find that to be enough of an upgrade to hold you over for longer.