Wow, what an impressive collection of excellent multimeters. I have just one question and I guess many people are curious about the same thing: which one, in your opinion, offers the best "bang for the buck" for general-purpose use ?
I do not really keep track of the price of the different meters and there is also the point about what you need.
Some thoughts:
The Benning is mostly out for electronic due to lack of uA range.
The Keysight U1282A is out due to its slow speed, I cannot keep calm while working with it
The UNI-T is a very impressive meter, but I am not that happy about the battery, it will probably have to be replaced in 5-10 years (due to age) with whatever I can find.
The Sanwa and Brymen is nearly the same, except for frequency range and one/two thermocouplers, for this reason I prefer the Brymen.
With the above said, it is more a question about what you need.
I have sometimes used the high voltage diode mode, it is much easier and safer than rigging something with a power supply.
The Energy meter has been very useful because it can measure watt and I have also saved fuses by using it to measure current.
I often use a meter to check direction in leds, this means the Fluke 87V is out, it cannot light a white led.
One point where there is a significant difference between the meters is the high mA range, the meters with one current input and EEVBlog 121GW all have lower burden voltage there because they are using the 10A fuse, not the 400mA fuse that has around 1ohm resistance (The shunt resistance typically 1ohm in that range).