I can only talk about this from a UK perspective because that's where I have experience in this. Most companies like that do not actively recruit, they don't come to my university and talk to me. They don't host student events. And often, even when they do come talk to me, they send HR people. I'm not interested in HR people, I'm interested in technology. I want a technologist to come talk to me, I want a decent conversation and want to feel like I'd fit in if I went to work there. A HR person is fine to come along, introduce themselves and give a talk about the culture etc, but I want some tech insight.

Banks recruit very pro-actively and very early. They do this much better than any other company. They'll be at 2/3 events in my university. If I send them an email it will most likely be replied to within 30 minutes. They do everything to make students comfortable with them.

And yes, people at Google might want to leave. But I'm concerned that I wouldn't, and that's a risk I don't want to take.