Hmm. . . Dog vs. Dog? Sounds neat.
If everyone else dies before we do, our main priority will be the evacuation of the others, and then saving our own skin. If we lose, perhaps we could 'disappear', and a random hero opposed to HEROES pops up out of nowhere...
Since he's coming from the zeppelin dock, I kinda doubt we'll be able to evacuate anyone if things go south. Better to just give him everything we got and hope for the best.
This is a heroic hero. He goes for the kill.
I kinda thought that heroic heroes were more Knight Templar guys who spared no one, no matter how unimportant or non-hostile, in their quest to kill all evil. He would probably see anyone we think worth evacuating as potential future Overlords. And in that case evacuating them would just make them a target, and leave them unsupported.
Come to think of it, we should probably think of getting our own Escape Zeppelin
tm so we can escape in case our henchmen get their asses kicked.
Edit:
The problem is that we can put either 2 advisors or one advisor and up to 19 minions in a room. We are stronger than Psysquid, as shadenight said. All minions we have together are stronger than psysquid. Chemista almost certainly can't do anything about that psychopatic wolf paladin. The strongest defence we are able to muster and cram in a room involves us and everyone we have left aside from the goo girls and the squid.
In short, us + all minions is stronger than Psysquid + all minions, and without minions I do not believe we can kill Knighthowl, so let's not tempt the RNG and Replace Psysquid with ourselves in
Room 1: (underwater mining installation) dark advisor: Psysquid with Sidekick Snowstar, The Behemoth catfishes and all minions we can pile on.
And tell Chemista, Psysquid and Cerulean to run and hide, as there is no chance they will win against Knighthowl.
Remember that even if he beats the first room, he'll hopefully be too wounded to be much of a threat to us, and if he manages to beat the first room with us in it, we lose everything. Besides, in almost any game, the final battle is always fought in the very last level, and usually not along with a group of mooks. Mooks are for henchmen, Overlords have Style and Standards.