I think for someone who really wants to keep their Bitcoin safe, not just their privacy, I'd suggest option 1.
Option 3 is also secure.
What's your metric for saying JoinMarket has the largest anonymity set? How is that being defined/measured?
I checked the
orderbook, and there are over 700 BTC in liquidity. The default coordinator from Wasabi uses less than that, but I get your concern. Total bitcoin from inputs and total inputs should be what defines the anonymity set. I'm also not aware of what's the total bitcoin in Samurai's liquidity. I'll remove it as "best" for the time being.
I think $10 is a pretty extreme example. I've done plenty of coinjoins on JoinMarket where I've paid the makers <50 each
I was paying about $4 to $6 for 9 inputs when the fees weren't high. I had once paid over $10. We should take into consideration that it's been months since the mempool was nearly empty.
I would also say "Service uses the fee you pay to hire a blockchain analysis company to spy on your inputs" is a pretty big con of Wasabi which you've missed.
Well, I want to keep this free of personal complains and as much objective and on-the-point as possible. What the default coordinator does with the money it makes isn't important for the coinjoin user, but for the integrity of their business. If treating the currency as non-fungible for a pro-fungibility claimed company isn't making the splash, then the cooperation with analysis company won't either.