I never played Dead Space one so I can't fairly give an opinion on it, but Dead Space two was really good.
Geek is Chic
"...And we will never back down, because a life without freedom is not a life worth living." - Ratonhnhaké:ton
"You either die a hero or you live long enough to see yourself become the villain." - Harvey Dent
"If you're going through hell, keep going." - Winston Churchill