Star wars VS WarHammer 40k

A what if Scenario:

Who would win if the entire star wars universe that means everthing from the Rise of the Empire Era, New Order Era, Old republic Era, New Republic Era, Fel Empire and Sith-Imperal war Era

VS

The Entire Warhammer 40k Universe:
Pre-Heresy Imperium of Man (Including Space marines, Sisters of Battle etc)
Post-Heresy Imperium of Man (Same with Pre heresy)
Chaos Space Marines
Orks
Eldar
Dark Eldar
Tau
Tyranids
Necrons

Aresenal includes all the space ships,troop types,walkers,tanks & Vehicles,heroes and villians ever made/appear in both universes

who do you think would win?

40k ftw

oh btw the battle field is both 40k & star wars universe with a massive warp portal leading into one-another

Marines and Eldar do it alone

Anyone who knows much about the Warhammer universe, could you PM me about a good place to start with the books? I've wanted to read them, but haven't been able to figure out where to jump in.

This thread always pops up here. In any case SW gets owned by the combined crazy might of 40k.

Nonononono.

Just... no.