would be on the lines of JDJ...
Top 5 finalists should first be ranked, without bias/favoritism, from 1 to 5 on the basis of content.
Then they should be ranked 1-5 on the basis of votes.
Both these ranks combined should result in the winner.
With such an approach, even less-voted contestants like Archana & Shalin will have a fair chance to be in Top 3.
In fact, this approach should be followed during weekly evictions as well so that no-elimination weeks are no longer a necessity.