They answered this in one of their FAQs. In short: Yeah, SS' spark would live, but Equestria has almost no machines he could fight with. (at the time, just a sewing machine and some scanning equipment)
Besides, it's not like anyone's going to really die on-screen in friggen MLP.
You have a very, very, VERY poor understanding of the word "fact"...
I'm going to assume that basically translates to "I think Transformers is better than MLP". I understand and accept your opinion, though I don't agree.
Next time express your opinion in a calm, reasonable manner, would you? It prevents arguments.
OT: It doesn't surprise me Rainbow Dash won. Starscream was always kind of a schmuck so he was doomed from the get go.
Not to mention Dashie has complete control over the exact force of nature that could short-circuit and destroy him...
Despite what politicians and fan boys would have you believe, opinions are not interchangeable with facts. Nor can scientific reason be applied to which show is inherently superior because they have no common denominator. Such speculation is purely subjective and completely pointless.