Team Sharon always. After the things that Sharon has went through with him (operation arrested for Skye's murder) and etc, she should despise him.
Time to get the facts straight:
Sharon lite the curtains on fire in the midst of her hallucination (operation look at the episode). It is ludicrous that anyone would hold that over her head as if she was an arsonist because she was not. As I recall when she was hallucinating the images of Victor, Nikki, Noah, Nick, and etc, after she lite the curtains and went to sleep on the couch will the fire burning. If she intending on burning the house for the sake of burning the house, why didn't she get out. Adam found her on the couch and rescued her from killing herself.
Second fact to get straight: Sharon came forward to Kick and Noah about the burning of the house and when she came over the Newman's to confess in a manic state several times. Nick and Noah stopped her. Why isn't anyone hammering those two for keeping the secret?
Third Fact to get straight: Sharon took over Newman after Tucker gas lighted her into believing that Victor had moved on with the Bonnie Franklin character therefore abandoning her, the family, and the company. Let's not even forget Nikki's text message pretending to be Victor. Yes Sharon was foul for allowing everyone to believe that Victor was dead but Billy knew he was alive and receive no repercussions for his behavior.
So the damage done to this family was minimal but let us list out the sins of others in regards to Sharon....No No we wouldn't want to do that....