Both of your examples are pretty poor choices, along with using a single photo to showcase/compare 20 KM corridors. Mississauga isn't very nice east of Dixie, no matter how far north or south you go.
The City has done a good job with the Burnhamthorpe corridor, it features a dedicated multi-use trail on the north side for almost its' entire length (Loyalist-Garnetwood Park). Over the past 3 years, they rebuilt the road from Mavis to Dixie including the multi-use trail, including full lighting for the trail, tree planting, bus lay-bys and queue jump lanes from Hurontario and Dixie. Benches have also gone up on the corners at intersections on the north side of the road from Hurontario-Duke Of York. Right turn lanes at Kariya have been eliminated to make pedestrian crossing more friendly.
The rickety sound barriers that you see in your photo are also long gone.
Burnhamthorpe is definitely the flagship crosstown corridor in the city and not just for cars, but for people too.