but which coin in your opinion would be the most attractive to somebody who is new to this?
The problem is that most people don't do the research: None of the altcoins you listed are truly anonymous (even anoncoin today is not anonymous). For the most part, they are at best just using fancy ways to mix transactions to make it harder, but not impossible, to figure out transaction linkages. The best solution doesn't always win on the open market, as the rise of DRK attests.
Zerocoin and Zerocash are the only solutions that I am aware of that provide 100% provable anonymity, and Anoncoin will probably be the first to implement zerocoin. So, to answer your question: Anoncoin is the most attractive for not only provable anonymity, but because it's price is currently in the gutter...
I am not sure how long the price of ANC will remain in the gutter..... it is up over 10% recently with the size of the buy walls continuing to increase. I think the recent update from Meeh has sparked a renewed excitement in the coin.