If such a scale makes any sense at all.
A debate about that would have to start by giving at least *some* definition of what is meant by "center". Then the debate would examine who these power brokers were, who their associates were, and what they did in Canadian politics - how it played out in the context of their times.
Here's a problem that I have in defining "center":
One difference between Liberals and Conservatives that I can "feel in my bones" and that is unquantifiable, is that Pearson, Trudeau and Chretien, are much better representatives of what I *want it to be*, to be a Canadian patriot, than any Conservative that I can think of - going back in my reminiscing. I still consider them (these liberal leaders) to be role models. How can that kind of unquantifiable and totally personal *feeling* be measured on a scale of left/right?
Names like "Progressive Conservative" are no more than names.
In BC, the discredited and essentially disbanded "Social Credit" movement bought out the "Liberal" name, so in large part except moved on by time and expedience it's the same thing, the same political party, and it gets pretty fucking confusing if a person imagines the name has some special meaning, beyond the fact that it denotes a political party controlled by a certain power group.
"Blackwater" "Academi" "Xe Sevices LLC" "Constellis Holdings" all denote the same general thing, but if we want to know what the thing is we don't find an answer by examining the various names.