I have an idea for a map where every unit is super-powerful. Stuff like 1-Mineral mini-Odins. Invincible Command Centers. Cloaked Mutalisks that shoot scourges. Zerglings with Yamato Cannon. Siege tanks with 50 range. Stuff like that. If I (or someone else) was to make UberCraft, should it be a tug-of-war sort of map? Or would it be better suited to a different genre (I dislike SC/SC2 RPGs...)? Also, if you have any other suggestions for UberUnits, post them here!

Uber Units are always fun... but they're hard to make a good game with. . . . .

A Hero Arena type map would work..

I think a battlecraft style game would be good for ubercraft. Although maybe it should be a ffa zone control type map (without the zones).
Ideas:
Broodlord with superfast fire rate
10-20 TINY zerglings that move super fast and attack super fast for minimal damage
Firebat with slow fire rate and 360 degree slash radius
DT or Stalker that can only blink and has no cooldown; attacks on move
Hexagon of doom: unmovable cloaked hexagonal cylinder that kills all that touches it. Dies after X seconds. Only air OR ground. (maybe crated by raven?)
Void ray with up to 25 stacks. Ability: hallucinate self.
Invincable CC that kills by crushing units. Crushes air upon liftoff.
Archon with 50 splash range, small damage.
probert the probe with 2 million attack.
Stimmed ultra + crack
GIANT freaking broodling. Just really really really big.

Sounds pretty stupid to me.

Which makes it funneh

Marines that would be the most cost effective units, a band of 10would destroy anything of the same cost.

Oh wait...