You had asked the question and answered too. Not sure what you are expecting others to answer. Anyway, I'll share my perspective to answer the question.
First, the user need to get confused, it can be based on his interest he can use any dApps. The confusion comes when the user has come only for making money since he needs to know which dApp rewards the most. I'd say, such users doesn't stay long, they don't sustain bear market. They will blame the platform and leave!
Steem dApps bring diversity to Steem blockchain. It is now easy to on-board users, dApps are built on specific use-cases, thereby making it easy and clear. If someone who is already using Quora can easy relate Musing, an instagram user can easily relate it with steepshot, rewarding open-source contributions by utopia is fantastic for developers/coders who are not much interested in sharing photos or writing blogs etc. Steem-monster for gamers!
dApps with their use-cases & users..
By having all these dApps we are not forcing everyone to write blogs to get rewards. It makes user on-boarding easier and free from confusion. Users can pick based on their preference.
If someone want to start, they should understand what is Steem, Steemit and dApps, what do they offer(keep the rewards/upvote aside), then decide based on their interest. Once they get started, they will discover a lot more about the Steem Blockchain and rewards.
To me i will recommend musing.io for him or her.
As a new user on steemit, you will still need to be pit through, learn some advice's, learn how steemit operate by asking questions , still need to get some tutorial also.
I can still remember when i joined steemit 12 months back, I came to steemit as a total stranger. I didn't know anything about steemit nor do I now how it is been done so I spend 6-7 months exploring this platform. Not after many months, then I begin to realise how it works, what spamming means and many more but what am I trying to say, if had it been I was able to be put through on Steemit back earlier, i will have gone far than where I am.
So I see musing.io as a great dapp that will enable him or her o learn new things about steemit by asking questions about it and also getting valuable answers which will surely be of help. So for me, I will not waste my time recommending MUSING.IO for him or her.