Score each option from 0 (worst) to 100 (best)...

First Past the Post / Plurality

Approval Voting

Score Voting / Range Voting

STAR Voting (Score then Automatic Runoff)

3-2-1 Voting

Two-round System / The Second Ballot / Runoff Voting / Ballotage

Exhaustive Ballot

Instant-runoff Voting / Preferential Voting / Ranked-Choice Vote / The Alternative Vote / Single-Winner STV

Contingent Vote / Top2 IRV / Supplementary Vote

Coombs' Method/Rule IRV

Borda Count / Positional Voting

Nanson's Method / Baldwin Method / Borda Count IRV

Smith-IRV / Top Cycle-IRV / GETCHA-IRV / Dominatng Set-IRV

Copeland's Pairwise Aggregation Method / Round-Robin Method

Kemeny–Young Method / VoteFair Popularity Ranking / The Maximum Likelihood Method / The Median Relation

Minimax / Simpson / Simpson–Kramer / Simple Condorcet / Successive Reversal Method

Dodgson's Method

Ranked Pairs / Tideman Method

Schulze Method / Schwartz Sequential Dropping / Beatpath Method / Beatpath winner / Beatpath Voting

Bucklin Voting / Grand Junction System

Majority Judgment / ER-Bucklin Voting / Majority Choice Approval

Single Stochastic Vote / Lottery Voting / Random Ballot