Hi! I actually made a similar site for my own purposes - https://poller.io - and I've been using it with friends for a while. One interesting finding. I was expecting that Instant Runoff would be the method we all preferred. I also included plurality winner, Borda Count and the Condorcet winner (if there was one) in the list of results. After using this with friends for decisions, I realized that a lot of choices tha…
You bring up a lot of interesting points on what people feel happy with after voting. None of these systems is perfect. Each can be picked apart in various ways. That's why I tend to frame things in terms of "does this move things forward from the status quo?"