Dont choose one just because you use it in every-day life. Post which one you would rather have if the whole world had to change, and which one makes more sense to you.


To me it is metric. It all goes together nicely.

Freezing point- 0
Boiling point- 100

10 milimeters to a centimeter
10 centimeters to a decameter
100 centimeters to a meter
1000 meters to a kilometer

and the same for liquids and weight.

(I forgot hecter, but no one uses that)