New to the series. Suggestions, please [MW3]

Morning all,

New to the COD franchise, over the last 6 months or so I’ve played Black Ops Cold War and this week I finished MW3 (WTF was that ending about!?!!, that’s a whole different topic though)

I really enjoyed both, but understand
A) the games aren’t linear
B) They’re very hit and miss depending on who the developer is, is that right?

Any suggestions for which game to play next?