I feel like the reason Blaine managed to be the last one alive so often is the same way he won Last Laugh last year. I think he's more likely to just be quiet and let the others be more noisy and active. It's a really good strategy, and it's one I often use in life too.
I also feel sorry for Chris and Gus. I swear, it was just so easy to tell who was going to get taken down first, and if it wasn't Chris, it was Gus. But that was a good thing, frankly, because they're almost more fun when they're ghosts in the game than when they're alive.