I agree with @skiinxs, H6 then ZR409. I have a 2015 with the ZR409. However the new ZR409 in the 2017's and 2018's do not come with the closed loop cooling. The 409's are known to run a little on the hot side. Without the closed loop cooling from the factory, this could cause engine failure earlier. Something to think about.
If it were me and I was going to buy a brand new boat...I'd go H6! Or find a used 200 with H6 or used 2015, 2016 ZR409.