Method evaluation poll 2005

Method evalutaion poll

Please rate the following single-winner methods on a scale from 0 to 10, on merit alone. That is, leaving the issue of public salability aside, how well will the method perform in a large, contentious electorate?

The answers you give on your first pass through the survey need not be final. Please feel free to change/update your answers as many times as you like.

Feel free to add new methods, especially interesting ones!

binary input

   JG       CB    ??   ??   ??
Plurality
    2       2
Two round runoff
    3       5
Approval
    5       6
Random Ballot
    1       1

ranking input

not Condorcet-efficient

   JG     CB   ??   ??   ??
Borda count
   1       4 
IRV without equal rankings
   4       7 
ER-IRV(whole)
   6       4   
ER-IRV(fractional)
   6       6
Bucklin
   3       6

nearly Condorcet-efficient

   JG      CB   ??   ??   ??
minmax(pairwise opposition)
    3       8
CDTT,IRV
    7      9.5

Condorcet-efficient

   JG      CB   ??   ??   ??
ranked pairs(WV)
    8       7 
ranked pairs(margins)
    2       4  
beatpath(WV)
    8       7 
beatpath(margins)
    2       4 
sequential dropping(WV)
    7       ? 
minmax(WV)
    3       ? 
minmax(margins)
    1       ? 
Smith//minmax(WV)
    7       ? 
Smith//minmax(margins)
    2       ? 
Nanson
    5       ? 
Raynaud
    5       ?

ranking input with approval cutoff

   JG      CB   ??   ??   ??
definite majority choice
    7      8.5 
approval weighted pairwise (e.g. with ranked pairs base)
    9       8 
approval margins
    4       9

rating input

   JG   ??   ??   ??   ??
range voting (ratings summation)
    6        
median rating
    3        
ranked pairs(cardinal pairwise)
   10        
beatpath(cardinal pairwise)
   10       

other

   JG   ??   ??   ??   ??
CWO-ER-IRV(whole)
    7        
CWO-ER-IRV(fractional)
    7        
CWO-ranked pairs(WV)
    9        
CWO-ranked ballot plurality
    4        
minmax(pairwise opposition) with AERLO and ATLO
    ?        
beatpath(WV) with AERLO and ATLO
    8       
beatpath(WV) with strong/weak preference option
    8

See also

Essential Questions poll