-Support, leaning towards Neutral
My opinion probably doesn't matter much, especially with the droves of support you're getting from most of the community, but I'll state it regardless.
It's clear you're a great roleplayer, and you've had excellent storylines in the past as well as relevant "experience" in a role such as this one. That, in combination with our interactions and your behaviour, makes me believe that you'd probably do well in the -1 position.
That being said, and this is more of a personal opinion of mine, I do not believe you, similar to other O5-1 applicants, should be applying for O5-1 when you yourself aren't a current O5. Yes, I know, you are more than qualified, I believe most people can see that.
However, I do not feel it fair in regards to current O5 members for you to become O5-1 despite having left the position in the past, nor do I think having been an O5 member in the past should be an acceptable reason to resume duties as a higher role than you originally had unless there are no other alternatives, which I don't believe is the case in this situation. I believe one of the current O5's should be given a shot at this role, not you.
I won't be surprised if you get the role, as it seems SL clearly trust you in producing high-quality RP (and their trust seems to be placed with the right person). But I still believe one of the current O5's should get a chance at holding such a role instead of yourself.
EDIT: In response to Broda's reply, I'll send him a DM to explain my POV as this is nothing personal against him. I have seen his reply and I know that the role of O5-1 is open to ex-O5's as well. However, my verdict stays the same. I think he'd do great as -1, but I believe one of the current O5's should be given a chance at the role, not him.