Ranked-choice voting allows voters to express their preferences for multiple candidates, ensuring that the winner has the support of a majority of voters.

First-past-the-post, also known as plurality voting, awards the victory to the candidate with the most votes, regardless of whether they receive a majority. This can lead to a candidate winning with a minority of votes, especially in multi-candidate races.

Proportional representation aims to allocate seats in a legislative body based on the proportion of votes received by different parties or groups, ensuring a fairer representation of diverse political views.

In a two-round system, the second round of voting is held between the top two candidates from the first round. The purpose is to ensure that the winner has the support of a majority of voters, which may not be the case if the winner in the first round received a plurality of votes.

In the United States, the presidential election uses the first-past-the-post system, where the candidate who wins the most electoral votes, regardless of the popular vote, becomes the president.

Ranked-choice voting allows voters to rank candidates in order of preference, which enables them to express their support for multiple candidates and reduces the risk of a candidate winning with a minority of votes.

Proportional representation is more likely to result in a coalition government because it allocates seats in a legislative body based on the proportion of votes received by different parties or groups, leading to a more diverse representation of political views.

A two-round system requires two rounds of voting, which can be more expensive and time-consuming to administer compared to a single-round system.

First-past-the-post is the most commonly used voting system in local elections in the United States, where the candidate who receives the most votes wins the election.

Proportional representation ensures a fairer representation of diverse political views in a legislative body by allocating seats based on the proportion of votes received by different parties or groups.

First-past-the-post is more likely to result in a single-party government because it tends to favor larger parties and can lead to a winner-takes-all outcome.

Ranked-choice voting can be more complex for voters to understand compared to first-past-the-post, as it requires voters to rank candidates in order of preference.

First-past-the-post is the most commonly used voting system in parliamentary elections in the United Kingdom, where the candidate who receives the most votes in each constituency wins the seat.

A two-round system ensures that the winner has a majority of votes by requiring a second round of voting between the top two candidates if no candidate receives a majority in the first round.

Proportional representation is more likely to result in a hung parliament, where no party has a majority of seats in the legislative body, due to its focus on representing diverse political views.