User blog comment:Tiredman2/What DLC would you like to see in the future?/@comment-733050-20120813192729/@comment-24174486-20120814014404

"But the number or type of War Assests you have plays ultimately no part in the end of the game other then the barest of details like Wrex or Kirrehe showing up."

Most significantly, your War Assets determine how many choices you get. You need a high EMS to be able to get all three choices; if your EMS is very low, you don't even get any choice. (And in that case, your ending is decided by your decision for the Collector Base. Choices at work!)

Other than that? Effective Military Strength determines the amount of damage sustained by the galaxy due to the the Crucible's activation, how well the fleets fighting the Reapers fare, and even the survival of the squadmates accompanying you.

"that is like a slap in the face to all the fans who wanted an ending, not a cliffhanger make-your-own-ending-until-we-decide-if-we-could-make-a-new-game-from-this ending."

Mass Effect 3 does have an ending. The final choice resolves the major conflict of the entire series, the Reapers. Before that, you resolve numerous plot arcs that ran throughout the series: the genophage, the geth/quarian conflict, the Illusive Man's indoctrination, the fate of the rachni, and many others. One could easily argue that the entirety of ME3 is the ending to the series, as it gives many farewells to beloved characters, including throughout the final mission.

I got my ending from Mass Effect 3. I saved the galaxy from the Reapers and finished up all of the loose plot threads. If resolving the plot doesn't qualify as an ending to you, then that's not BioWare's fault.