I already told you how I view canon and continuity. Of course I base my outlook from various sources, ranging from the story, in depth interviews and statements from writers, directors and producers, as well as in-universe connections.
Basically, story and Word of God is how I go through my outlook.
I mean there are a lot of people out there that say that PREDATORS is in fact Predator 3 but I often disagree with them by posting up links with Rodriguez's word refuting that claim (which was made by Antal), as well as dates when statements were made, and specific web chats as well, but all of that would get me nowhere and really, it's futile.
Regarding Prometheus, well, it's tricky because the movie isn't even out yet. So it's a wait and see situation.
Regarding the EU, I count the EU depending IF certain stories manage to somehow tie in nicely with the films, and this also counts the games as well. Some of the novels, comics, and games I don't count because they are extremely outlandish and are crossovers, or simply don't follow lore (i.e. AvP Arcade).
-Rakai'Thwei