I am only a rank 230. so I would like to know what type of production is best for a higher ranking player like maybe 500-800 rank. artie? reasearch? or mining? I was thinking prb mining for a huge upkeep. and research would be finished by then. but what about arite?

Yes mining. Forget arti's or research, who needs those?

Artifacts all the way, the other stuff is not even a close second.

Artifact is where it's at. Mining is rather easy to come by if you NPC with any regularity (Toxic Purifiers) and by rank 500 you should either be done with needed research or very near to it so you can cash in your research points for credits. At the higher ranks, upkeep is rather meaningless, planet colonization/invasion is where the credits go.

Arti is by far the best resource and is at your level too not just insanely high levels.

I think artifact is the most important and is followed by mining and then research.

good information, what is the return rate for trading reasearch points for creds? I have a huge research for my rank, and am looking for finishing the research fast but with this when I am done my mining would be improved.. so with this information artie seems to be the best. thx everyone!