When Kevin Smith brought Oliver Queen back to life there was a part of that story where Ollie takes a trip to Heaven. While there Ollie talks to Barry Allen (who was dead at the time). The Flash comics of that era depicted Barry as being one with the Speed Force. Which comic carries more weight about where Barry was? Green Arrow or Flash?
I could use a Marvel example if you want. In a Hercules comic, Herc and his buddy Amadeus Cho visit a land of the dead, which is depicted as a casino, and see Janet van Dyne playing the slots hoping to come back (Jan was believed to have died following Secret Invasion). However in the Avengers comics it was later revealed that Jan did not die in Secret Invasion, she just became trapped in the Microverse.
House of M depicted a bald Peter Parker who sabotaged his own life and depicted him as wanting to be the Green Goblin. What it, and its follow-up, says regarding Spider-Man means nothing. No Spider-Man comic depicted the events to line up with what House of M said. And considering these days Marvel depicts "Gwen Stacy" as a hero, the idea of her being the great lost love of Peter Parker is an idea of a bygone era.