The only thing that the two have in common is that they starred in a show when they were a participant in JDJ. Prachi is a much much better dancer than Mona ever was. Prachi while not as technically good as Sandhya can surely give her a run for her money. She has been improving with every performance and doing something different and doing it well. She has gotten to the point where even Shamak is giving her a standing ovation, so she has transformed herself into a very good dancer. Prachi is a complete package of dance, expressions, popularity and persona, and to compare her to Mona is very wrong. Mona even at the end was never a good dancer. Prachi has even lead the scoreboard a couple of times with her points from the judges.
People should give the WC argument a rest. When Sudha was eliminated people were shocked as she was never in the danger zone and getting consistant good marks and same thing followed with Prachi. They realized power voting was causing this so they changed the power voting rules and is allowing only 10 votes per sim card as opposed to 100 and they gave PD and Sudha a chance to be back with the WC. Also people should stop saying Sudha declined based on a comment she made before WC was official. Sony would not have gone all out and promoted her for WC is she did not participate in it and people like Shivaji Satyam and Shamak would not have asked for votes for her in the WC round.
It's a dance show, and all the performers are working really hard to entertain us and improve, so why not enjoy the performance rather than pulling the contestants down. They all have their strengths and weaknesses and are trying to put their best foot forward. Just my 2 cents.