And actually you can compare them all and point out things that can be measured like features and specs but to declare one is better over the other is completely subjective to the end user. For instance these all had interchangeable prisms and screens, titanium horizontal curtains and the top of each manufacturers specs at the time of their releases. Magazine reviews of the day used to actually disassemble them to determine what they were made of to predict how they should last. They also subjected them to some strenuous environmental testing that maybe few of us today would even think of let alone conduct. Unfortunately I didn't find any bulletproof or use them as hammer testing but maybe myth busters can do that . . .
Of course some time has passed since these were available factory new which really skews the perspective of new users.