Vegas one looks best imo.

Vegas is the only one which would be accepted

none cuz we arent trading him

You have them in the right order I think, from best to worst. Either way, he isn't going anywhere before the deadline. If the Canucks can't sign him to an extension, they'll deal him at the draft or in the off season.

The irony of including Lundkvist in a trade with Miller.

I like the Vegas trade most for Vancouver though.

They are all pretty weak offers imo. Vegas probably top though

Why the retention? If teams want Miller it is up to them to clear cap space or offer something incredibly good.
None of these deals are good enough for retention IMO. All of them would require either another prospect or pick.
Any 4 of those players might be good enough to retain salary.
The Canucks won't trade Miller to get rid of him. Cap space and his age would be the drivers behind a Miller trade.

I like the one where we don't trade him and sign him to an extension.

Vegas is the only decent one but just keep him at this point. He is playing like a franchise level player this season.