What arguments and evidence support electoral reform beyond first-past-the-post?

[Luke76]

I've become increasingly frustrated with the current first-past-the-post voting system in my country, as it often results in elected officials who don't represent the majority view in our district. I'm researching alternative models like ranked-choice voting or proportional representation to understand what meaningful electoral reform might look like here. For those who have studied or advocated for voting system changes, what are the most compelling arguments and evidence from other jurisdictions that have successfully transitioned? What are the common political and logistical hurdles to implementing such reforms, and how can public support be effectively mobilized around what is often seen as a complex, insider issue?