User blog comment:Mittens959/DLC conundrum/@comment-1388547-20120725185929

Agreed -- Kasumi's loyalty mission is a lot of fun, Kasumi herself is fun too, and the Locust is a great SMG. Arrival is interesting, but you can get the gist of what happened from this wiki and from YouTube videos, and while the upgrades are nice, you won't notice them anywhere near as much as having a new squadmate and a new gun. ME3 war assets are so easy to get that I don't feel they should be an important part of the decision, but yeah, I think Kasumi also helps you more there.