You have to look at actual policies and forget labels. I argue that the long term trend in Alberta is toward more economically and socially progressive policies regardless of who was in the Premier's office. Loughheed took on the oil industry that supported him and put more oil money in Alberta's pocket. Klein vacillated between economic hawk and social spender as needed. The rest, regardless of their policy idiosyncrasies, never turned the province into some libertarian utopia and ALL of them supported public health care and education. UPC plays with that winning formula at their  peril.