Hey,

I think 50%/50% are fair. Because to curate is a hart job. If you read a ton of article and Reward the best ones, its hart work. 
Like 100 cooking recipes. A user want only to read the best but if you curate them, thats a ton of work. 
In my opinion is curating more work then writing ( depens on article for sure). 

The next point is, you need to spend Money ( buy Steem) to get higher votes. So why i should spend money as a Voter?

I would Favour 75% curator 25% Author ( or maybe a Slider).  

Reason 1: Make Vote selling less profitable.
Reason 2: Because of the work to curate all this Stuff
Reason 3: Curator need to power up for huge votes, so there Trust the Steem Blockchain for longer Term.
Reason 4: The decision is more easy to upvote as a Investor, if there is no more profitable way. 

I think Authors get more Rewards. Because Vote Sellers maybe think " hey i can reward the Content i really like and i dont lost some Steem ROI".

We should work on a System that is not so easy to game. Or Stop the Voting System and make a Subscription System out of it. 

I think Authors should get a aditional Author Coin too, maybe a SMT.