I'd vote for LuckayLuck and hardcoreUFO, on the theory that:
- I don't think hardcoreUFO is a spy aorn
- If Luckay is a spy I don't think he'd sabotage the mission
As far as other missions, I'd probably vote for anything including myself (not a hard-and-fast guarantee though, don't know how I'd feel about some combos).
Anything else I'd have to consider but would take the same approach as I took today, assume "no" unless there's a good reason to vote "yes".