ME3's endings were revised, you know. But, I have to agree that the original endings weren't great. I looked them up out of curiosity, and they were all similar, and lacked any indication that your final decision made a difference(aside from maybe the synthesis ending), let alone your other choices. The revised endings are really fitting IMHO, so you should check them out. I don't think the original endings were wrong, since the revised endings contain the same footage, but I think they were pretty underwhelming, and out of sync with the epicness of the rest of the series up till that point. But, worst endings in history? Seriously? That's a big statement. They're not that bad. They're just meh, though I guess people wanted more than meh, and I can't blame them. I highly doubt the original endings would have ruined the series for me though. Far from it. I saw the impact of my choices throughout the story, and the writing was great till the very end IMHO, so no ending would have taken that away from me.