I would buy a Toro. I have a newer Ariens that I bought used on CL, and it seems pretty flimsy.
Look at the welds on the Toro vs the Ariens. The Toro has a lot more welds and they are much longer in length holding the bucket to the frame. Within the first several years, corrosion/rust, etc will begin to eat away these joints. Overtime the bucket will separate or crack, leaving the unit worthless. This will probably happen long before the engine dies from normal use.
The Toro does have more 'plastic,' but most of its guaranteed for life and will never rust.
I plan on buying a Toro 1128OXE someday to replace the Ariens. I wanted a Honda HS928, but the handles are way too short.
All engines are already or soon to be made in China unless you get a Honda. I think there may be 1 or 2 models of Briggs still made in the USA, but most are assembled in China.