I can’t speak for Blizzard, but at EA Redwood Shores in Marketing, I’ve had a blast and have been able to accomplish great work. Agree with what OSA says above: comp, perks, work life balance, and resources are all great. My teammates are amazing too, and we all love working together.
I’ve worked at both and would say EA is way better. If you care about what gamers think, Blizzards the better choice. If you care about comp, perks, work life balance, and actually being able to get resources to support your work, then EA is the easy choice.