lily lily:
When we voted on the Single Transferable Vote system here in BC, it narrowly missed getting the required support (less than 1%, I think). I found that amazing, since most people didn't seem to understand it.
MMP is simple. STV is complicated. There must be some reason MMP was voted down so thoroughly while STV almost passed.
I think perhaps the biggest difference is under MMP there are lawmakers who do not represent any riding. Under BCSTV, every lawmaker represents a geographical area, even if they share it with others, and is accountable to the constituents of that riding.
I like the idea of IRV, as an alternative to MMP. One representative per riding, easy counting, and it gives people a chance to express their second and subsequent choices.