I think had Ultron showed up sooner and done more damage personally it probably wouldve had more weight. If you look at what he did, it was powerful but he really wasn't that much hands on.
I'm so wishing they'd turn these Annihilation comics into a video game!

Marvel needs its own video game line, not just a game for Spidey. They are turning DC/WB like when their games seem to only involve 1 or 2 characters.
Annihilus sat back as his Annihilation Wave destroyed a messload of stuff, just as Ultron sat back and let the Phalanx assimilate planets and people for him. Yeah, bugs tearing stuff up is more violent, but I see the similarity of both approaches.
And yeah, an Annihilation Video Game series could be cool.
It was done too quickly and too easily to be taken seriously. I think if they played up creepy moments like the Kree being vaporized for fuel then it would make Ultron seem more sinister.
Point. Yes, it could have been handled and paced better.
BUT, we did see this element in the core title itself, when Ultron was introduced. I thought he was plenty creepy, especially when he was torturing Starlord. Or did that not count because "we knew he'd live" due to GOTG promos?
So Nova nearly killing himself is a testament to Ultron's villainy?
He didn't know he couldn't drill through the dome. That was part of the plan so you could credit that. It is like, if Captain America happened to step on a trap left behind by Norman Osborn, and gets vaporized, Osborn can't and wouldn't claim credit?
Mantis is still alive, Gabe's death was pointless, Groot's deaths are meaningless since we know he comes back, and Moondragon was unlikeable so who cares that she's gone. Ko-Rel's was the only death with any actual weight to it, but Ultron wasn't even responsible for it.
Unlikeable or not, Moondragon's death counts, as does Prax.
Also, I wouldn't use "undid Ronan's plans" as an example of Ultron being a badass. That was just bad writing and made Ronan's subplot just an entire waste of time.
I do agree that a fleet of Sentry robots wasn't what I expected to be underneath Ravenous' seat. I was expecting like a GOD OF WAR type weapon or something.
Who cares? His genetic perfection plan lasted for about five pages, and, as you said, the Earth was never in any real danger. Contrast that to the first Annihilation where the universe was very much ****ed.
And Dr. Doom had Beyonder's power for what, an issue at most of SECRET WARS, but everyone drools over that.
The point is that the Earth was in real danger if Ultron was not stopped, just as the Annihilation Wave would have swarmed Earth eventually had Annihilus not been defeated.
You can only threaten the universe in the exact same way so many times before it becomes mundane, like what DC has done to CRISIS. DnA took a more subtle approach to conquest after the bug swarms of the first go and while I never said it was better than ANNIHILATION or without flaw I did enjoy it, and moreso than a lot of the "terran" Marvel events.
It was a mistake for DnA to ever introduce Earth into the equation, because as soon as you do that, you no there's no longer any plausibility to the villain's plans.
But by that logic, a lot of villains aren't plausible because you know they can never take over the Earth, or take over America, or kill the franchise title hero. It is part of the genre expectations.
It is like, Loki is plotting against Thor right now in THOR. But can Thor ever die? No. He will always be back. So is Loki now implausible? If you think so, then your issue is with genre conventions and not this particular element.
Seemed to me like there were plenty of other alien civilizations left at the end of Conquest. And even still, I'm not saying Ultron need to destroy half the universe to seem threatening, I just think his presence lacked any sort of weight.
So, in order for Great Ultron to have seemed more dangerous, DnA should have just lined up some extra races for the slaughter, even if they were already reeling from the Annihilation Wave.
Admittedly, any space event that magically avoids the Shi'ar seems hollow as they are the most overused aliens in Marvel thanks to X-Men and if Ultron could have wiped half of them out, that'd have been cool. Vulcan would make an easy figure for a third installment. Not exactly for a main villain, but someone to show up. Annoying or not, they are a space power, moreso than the Spaceknights have been for ages.
I thought it had weight, just was more subtle. I appreciated the attempt at something different rather than just try to copy Giffen panel for panel, even if it didn't always bare fruit, but I guess we're always going to disagree on that.