Good of you not to engage in an argument with your sister about your mom's stuff.
I'd been telling my mom for years that I would give my sister first choice, and I meant it. My sister cares a
lot more about having possessions than I do. She is a collector of sideboards, china, and mid-century Christmas trees and ornaments... probably more but I haven't been to her house, so I don't know.
I am a collector of nothing. I love poking around in antique stores, but I don't buy anything -- mostly because I have to really love it before I want it, and most things don't "speak" to me that way. But when they do, I love them forever.
My mom had a tiny white terrier on wheels (on her fireplace mantel) - I took that, a few pieces of framed art, and two kitchen utensils my great-great grandmother had owned (what I think is a nut chopper, and a wooden handled fork). My sister had a moving van, plus a few dozen boxes that she shipped.
I could not have handled figuring out where to put all that stuff, or unpacking those boxes. When my MIL moved to Florida, she had a yard sale. Afterward, she packed up everything that didn't sell and sent it to me as a surprise! I was now the proud owner of a dozen large boxes filled with things I didn't want. The things went to Goodwill, after I consulted my husband about what he wanted to keep. That stuff didn't sell for a reason.
I kept the large silver platter so I could feed the ground feeding birds in the winter. It sat on the snow so they didn't sink into it. This treatment, by the way, did not hurt the platter.