From Winter Tires to Summer Tires or All-Season Tires?

In the past, I have never thought much about the switchover because my cars came with all-season tires and when winter was over, I would switch them back on. However, at the end of this season, I'm at the point now where I need to buy new tires for the spring, summer and fall seasons and it occurred to me that I may be doing this all wrong. I know that when the average temperature is above 7 ºC that should swap out my winters, but should I replace them with all-seasons or summer tires?

Common sense and a bit of research is telling me that all-seasons are a compromise to cover all-seasons (duh!), so I am leaning towards summer tires as theoretically they're specifically designed for the conditions I'll be using them in (i.e., spring/summer/fall, temperature > 7°C), but I've never had them before so I am unsure.

For whatever it's worth, I live in the GTA and the car is 2015 Acura ILX Dynamic, manual transmission.

What are your thoughts? What is the general consensus on this?

Thanks