Re: WH40K vs. SW vs. Halo
Your turning this into SW vs space marines only
The battle barge you provdided a picture of is a venrable, space wolves battle barge, Which is not an actual battle barge but only a cruiser which serves as a battle barge by only name
That picture of a dark trooper looks just like a bigger imp really, no difference in the armor it seems.
And your At ats would be decimated by a titan which could lay waste to thousands if not tens of thousands of imps.
And battle barges dont carry many men because they dont need to, you forget that those 800 space marines even less can take a whole planetary system extremely fast. The battle barge is practically a flying city. Then you get the likes of the fortress monestries which some chapters use as there flag ship this can be as big as large moon
Space marine terminators also need to be brought in, wearing tactical dreadnaught armor these elite are very hard to be took down,
And warhammer pictures are hard to find due to it being a table top game where as star wars has its movies for pictures.
As for your jedi's Libarians can use there type of the 'force' to practically make there minds explode, or Chaos libarians can use it to take there minds off them turning them into obediant little puppies.
Then the chaos has there gods too.
Necrons are pretty much invincible, after there destroyed years later they can rebuild themselves
Daemon hunter; grey knights can be prettyyy darn handy too
And as for your planet destroyers they require shielding from a seperate source right?
A strike team of kasrkins or space marines can take this out one by one, take over the death star using boarding torpedoes and wa'la warhammer universe have a host of star destroyers, bring in the mechaneus dudes, up gun them with a few bits and bobs.
The imperial guard number in there tens of billions capable fighting soldiers with billions of tanks at there command.
The space battles will be a close battle but i think that the boarding of the bigger ships by space marines and the elite of the other races would just about win it for the space marines.