Exactly - but of course 'best' has a different definition for everyone.
The point remains TOS was not all 'The City on the Edge of Forever', and if this film isn't that (which it isn't, neither were any of the others either IMO) then it could be considered to be more in the vein of the majority of the normal TOS episodes - kinda in the mid-range.
'If the Apocalypse starts, beep me!' - Buffy Summers
'The sky's the limit.....' Jean-Luc Picard, 'All Good Things'
courtesy of Saquist