Be realistic. Bitcoin will have the same privacy level as DarkCoin once DarkWallet is finished.
It's Litecoin that has zero privacy. Thats why #2 place is realistic, if all turns out good. #1 not so much.
FYI: dark wallet alpha 4 is out. They are looking at deploying distributed nodes next. Will this be as good as MNs? I don't know. Darkcoin needs to roll out pronto if it wants to stay ahead.
Darkwallet is never going to be a substitute for a truly dark network for 1 huge - elephant in the room - reason: it's optional.
What that means is that although you can keep all your expenditure private, you've no control over the privacy of funds that you receive - your customers might use dark wallet to send you money and they might not.
It's a gimmick.
fyi: darksend is also optional. Gimmick or not, dark wallet is validating the concept of distributed nodes and will be implementing it next. Darkcoin needs to move faster, IMHO.