I would tend toward the QLimetal one just because of my positive experiences with them. But, can I say for sure the others aren't made in the same factory in China? No, so maybe the better priced one is the way to go.
To my knowledge, nobody has made a stainless version of the swinging basket that attaches to the hood. I don't care myself, because I would never use that and would rarely use the raised racks, we are looking at here. My 1st generation Summit has a stainless raised rack. It is high enough to not get in my way, so I leave it on. Once in a while I use it to park a steak or burger that is cooking too fast. Mostly, it sits unused. If it weren't stainless I would have removed it.