Since mid-2012, City of Ottawa councillor Doug Thompson has voted against the majority will of his peers only once*. On November 26, 2013 when Council debated the Transportation Master Plan an amendment was passed that modified the plan for Prince of Wales Drive. Thompson dissented.
The frequency with which a councillor (or citizen commissioner) votes against the majority should not be considered a valid standalone measurement of their value. The job is about more than just voting. There is nothing wrong with being on the 'winning' side of every vote - it could simply mean a councillor is always getting their way.
Nonetheless, the minority report is interesting to look at if only to guess about why the variance in dissenting rate exists.
Among elected councillors, at the other end of the scale we find Councillor Rainer Bloess has dissented 3.38% of the time. Bloess is 15 times more likely to vote against the majority than Thompson. The transition from one end to the other other is also smooth, as you can see in the chart. Whatever factor influences how frequently a councillor will vote against the majority, the dose has been doled out smoothly from smallest to largest.
Being a relatively new member to the transit commission, Johnson has cast only 65 yes or no votes. Perhaps his dissenting rate will come back into range once he has more votes under his belt. Or maybe as a regular citizen, and younger than average committee member, he really is going to continue have a different view of things.
* OttWatch scrapes the voting history out of Ottawa.ca after meetings have concluded. It's possible some data is missing. (So perhaps Councillor Thompson has voted no on more than one occasion, but we missed that vote in the counting). Corrections welcome.