I'd look at Toro or Ariens (depending on where in the Ariens line). A lot of the other brands are rebranded. Depending on the year you may be buying a total piece of junk, or it may be "OK". I'm not up to speed on whether Deeres are good at the moment, or not, or maybe only part of their lineup is.
If you look at Toro or Ariens, they are the actual constructors of the machine and make top shelf products.
Craftsman is all over the map and they rebrand a lot of different brands. Recommending a "Craftsman" is like recommending one with two wheels - who knows what it is.
Also, the engine is just about the LEAST important part of the machine when it comes to performance and longevity - don't get hung up on it while ignoring everything else about the machine's construction. As long as it starts, you're good, and any of the decent brands will.
I'm OK with different models/makers having a different spot on the quality spectrum but somehow these guys get away with selling junk for almost the same price as good equipment. I don't know just how they do it. Consumer ignorance, I guess?