I'm going to start a new trilogy playthrough with Shepard based off myself and want to know your opinion on some decisions throughout the games. But there is a twist - please, answer what you personally would've done in Shepard's place if faced the same choices.
1) Rachni queen - kill or release
2) Balak - kill or let to escape
3) Grunt - keep in a jar or release
4) Legion - activate, sell or keep for Alliance
5) Elnora - kill or let go
6) Vigo - kill or save the workers
7) Garrus LM - kill or spare Sidonis
8) Tuchanka - sabotage or cure
9) Rannoch - geth, quarians or both
10) Ash/Kaidan - accept to the crew or send to Hackett
I'll probably update the thread with more questions if they arise
Gameplay benefits don't matter, I'm simply interested in what you'll choose.
Edit: Vido, not Vigo. It's not Ghostbusters after all 
1. I have to say, of all the choices in the ME series, this one still gives me trouble. I'd leave her in her glass prison in RL and let the Council decide. But If I had to choose between killing her and releasing her? Again,...that's a tough one for me to answer. On one hand, I do not like the idea of causing an entire species to go extinct. On the other hand, they were extremely dangerous when the Salarians first encountered them over "2000 years ago." Realistically, I'd regretfully kill her. However, I let her go in my Canon play-through(where I let Shepard be my personal avatar). The main reasons behind this were two-fold; how Bioware presented the Queen's character and Shepard's general disposition towards the Queen when you decide to kill her. The Queen was presented as a friendly and rational being, and Shepard pretty much became a sadistic ******* while deciding to kill her. It was pretty clear that Bioware was not-so-subtly trying to say that letting the Racni Queen go would have no negative consequences, and that only an evil bastard would kill her off(which is something I hope they avoid in ME:N, but that's a whole other issue).
2. I don't like the idea of sacrificing the hostages, but there is no way I'd let this a**hole go. He is too dangerous. I do not kill him in my Canon play-through however. I let the Alliance take him in for the slim possibility of gaining some intelligence on the Batarian Hegemony so something like the hijacking of the Asteroid over Terra Nova does not happen again.
3. Release. No point in wasting a possible resource. However, I would not release him in a cramped room that offers no mobility. Of course, you're not given a choice in the matter.
4. Activate. If it wanted Shepard dead, then it would have shot him when it had Shepard in it's sights. I'd want to know why it decided to help and possibly gain some insight on the Geth.
5. If given the choice, I'd incapacitate her rather then kill her. But since I'm not given that choice, I'd kill her. It's generally not a good idea to hesitate when a mercenary draws a gun on you.
6. Let go. I constantly see Vigo being compared to Balak. Yet Balak and the hegemony are a certifiable threat to the Alliance and humanity in general. The Blue Suns are a possible threat, but not a direct threat. They're a mercenary group, and mercenaries can be useful. Besides, killing Vigo doesn't accomplish anything. The Blue Suns are not going to crumble without his leadership, especially since Solem Dal'Serah was placed by Vigo as the acting "head of operations" anyways. Sacrificing the refinery and the workers in it just to kill Vigo is a complete waste.
7. Spare. Not for Sidonis' sake(I could give a rip about him), but for Garrus'.
8. Pretty much what Deinon Slayer said.
9. If I can, I go for peace(I'm not going to say no to acquiring two fleets if I can help it). If I can't, I spare the Quarians. Even though the Geth would prove to be more useful against the Reapers, I'm not going to sacrifice an organic species for a synthetic species. Besides, the Geth allied with the Reapers twice now. I acknowledge that there is still a risk of them siding with the Reapers if I choose to broker a peace agreement between the Geth and Quarians, but the prospect of gaining two fleets for the price of one offsets that risk.
10. Accept to the crew. I can always use a trustworthy and talented Soldier on my crew.