I don't see it as being a bang-per-buck shootout, then you get into arguments that some $500 model is the winner. So it's more like what is the best most powerful scope you can get under US$1000.
A problem I see here is what defines "the most powerful". Does that mean inclusion of protocol decoding, frequency counter, fft, etc. Or is it the bandwidth and sample rate that defines it. Then there is screen size, user interface and whatever you can think of.
It might also differ from person to person what they actually need for their jobs at hand.
For me a proper comparison between the different models over different use cases in a similar price bracket would be more interesting then an overall shoutout on a wide price range under 1000 USD.
Lets say scopes in the lowest price bracket <300USD like the FNIRSI 1014D, Hantek DSO2D15, OWON SDS1102.
Then the price bracket of >300USD to <700USD like GW Instek GDS-1202B, Rigol DS2202A, Siglent SDS2202X-E, Hantek MPO6004D, Micsig STO1152C.
And at last the price bracket of >700USD up to 1000USD like Keysight DSOX1102A, GW Instek GDS-1104B, Micsig STO2202C, Owon XDS3104AE, Siglent SDS1204X-E, Rohde & Schwarz RTC1002EDU, Rigol MSO5074.
Just a bit random lists in three brackets, because there are many more to choose from, and might need a bit of matching between parameters like bandwidth and sample rate. The number of channels is, in my opinion, less important, because most vendors have models with either 2 or 4 channels based on the same scope engine. So for a basic comparison of features not of interest.
For the all the scopes it is important to know the actual limitations that the specifications don't show, because they do lie about them, at least FNIRSI does