I think it’s a personal thing! DS#2 invested in a pair of Blundstones last winter, and to some extent his choice was determined by his size (men’s 13). He ended up with the brown rustic. I think they are perfect for him and his style, and the brown patina perfectly bookends his curly brown hair and beard with red and blonde highlights.
If Bludstones worked for me, I’d go with the most traditional/classic black available.
For you I’m thinking #1. The rustic reads as charcoal grey, and perhaps not as versatile as classic black? As you say, Bludstones get a little roughed up with wear anyway. It’s a part of their charm.