One slight mistake I do think Vika is making. She keeps trying to return at Serena's feet. I think that isn't the best tactic, it's a good tactic if you can guarantee unreal depth, but off Serena's serve you can't. If it's even a little bit short, it's food and drink for Serena.
Just so you know: I'm better than you because my fave is better than your fave. Your fave is a bitch and a shrieking BBB. Or was it pusher? Who cares. She's a classless brat anyway. But don't you dare insult my fave, idiot.