I would fully disagree here, generally you are better off being part of the program that gives you the best value. It all depends on what and how you fly, if your employer requires lowest econ fair in canada, good luck with altitude + high fees and bad routing for booking reward flights unless you are SE. I'm Tk elite for 7 years running, maybe fly them every second year and live in canada. I fly United the most, but like to have lounge access, so I dont bother with UAMP.

It sounds like OP has a mixed bag of flights and likely needs a program without minimum spend/mileage.