Here are four from my collection I would throw into the ring.

Firstly the 1969 Landmark. It might not have any inserts, but I think this puts the focus on the incredibly detailed inlay. Its a miniature little world contained in the chip. Its sleek, its got the tower the mountains etc. I think it does a great job of looking premium.

Second is the 1963 Sands. I actually think this design is better than the cowgirl (shocking I know) but I think the bright yellow chip combined with the iconic inlay just works so perfectly. Its got that charm and style of the Sands (especially since it shows off the iconic sign at the front of the Sands) with the added brightness of the yellow. The best Sands chip in my opinion

Thirdly the 1965 Bucket of Blood. I love how they only and one chip with an inlay in their entire history and its so incredible. Its simple in premise but intricate in executions. Its a common chip but its aesthetic appeal drives the price which only solidifies the beauty.

Finally the 1964 Cactus Pete chip. I just think it comes up the Nevada vibe nicely. This one is a bit more of a hot take as its not really clear that there is a man leaning against the cactus. But the sunset, the cactus and the dual fonts work so well