The last one of course, minimizing the break of symmetry! ;)

I think 33 1/3 ,33 1/3 ,33 1/3 might make your point clearer... 8)

PS: this reminds me of the extra rules for the group phase in football tournaments to decide who continues ...

same points? oh!

same number of goals? oh!

direct comparison undecided? oh!

... and so on, and if nothing can be chosen for a decision they finally flip a coin! 8)

eg UEFA_Euro_2008#Tie-breaking_criteria