[user234683]

I always recommend this pair of videos when discussing STAR voting vs other alternative systems. The first video is an easy-to-follow explanation of how spoiler effects can happen in both plurality voting and IRV [1]. In the second [2], the guy who created Star voting applies Ka-Ping Yee's methods to Star voting and animates it side-by-side with alternative systems to show its performance.

[1] https://www.youtube.com/watch?v=JtKAScORevQ

[2] https://www.youtube.com/watch?v=-4FXLQoLDBA

[uoaei]

Interesting, this must be relatively new. They introduce a slight modification to IRV that mitigates its artifacts. But you can see even in the video that some remain.

I'm not sure if or why people might feel more satisfied casting their votes as a partial ranking versus as a binary approval. But it seems like STAR works great for the former group, approval for the latter.