Well...its the D3 forum, & I haven't read the last 29 pages, so I don't know if my opinion is going to be actually read or if I am going to be shot out for being from an opposite fandom. But oh well...here goes I guess.
Personally...I haven't ever liked Sharon, not in 2011, not recently. So yeah...to me neither actor has changed my perception of her. However...as far as being performers goes...I can't judge who is better or in what way having seen 9 months of Sneha Kapoor & barely a few weeks & snippets of Vrushika. Sneha was undoubtedly an extremely talented dancer & actor, though I liked her offscreen the most. She always seemed an extremely innocent & sweet girl, & I remember having being very impressed every time I saw her IVs because she was like, the exact opposite of Sharon. Also...I actually admired her in the last few months. When she had issues, she didn't run away, she tried to find a way around them. I presume it was a wrong decision from the accounts of SS fans, but still, it seemed to me her being loyal to her fans. And later on...she had the guts to tell herself that she wasn't doing justice to her character & backed out.
As for VM...like I said, I haven't seem too much of her to judge. I do remember seeing her first interview, & finding her quite vivacious & promising & woeing about how much luckier SS fans were. I like her dancing & I was actually greatly impressed by her acting in this one scene. I don't know what track or time period it was...but the Taani was jhadofying the gang & Sharon goes "Rey ki absence ka kya excuse diya tumne" or something. I was pretty darn impressed by that scene, because Sharon seemed very diva like, so like the Sharon whom I remembered...