The only person, perhaps in all of fiction, with better plot device intelligence feats is the Doctor (Doctor Who). Reed is really, really broken with tech and smarts.
Reed traveled to - and thus discovered - at least the Negative Zone. And I think the Microverse as well. So yes. He's also interacted with and fought his counterparts from numerous universes. I'm not 100% sure whether he has the tech to travel between various Marvel universes, but arcs like that would suggest he does.
Terrific in both if Pre-52. His T-sphere is better than anything Reed does (pretty much) because he ACTUALLY USES IT. Reed seems to make one off tech or tech he never uses again so you have to question how useful he really is.
Reed is one of the most extreme super-geniuses in fiction. His intelligence is basically a plot device, which is also why I don't care for the character.
Also, in asking this, you reveal that you didn't look through the link I posted (or at least missed several feats posted in it). it's really the quickest way to learn a lot about Reed. I'd recommend it, and other respect threads as well.
Digi, what Doctor Who feats spring to mind that you feel are comparable to some of Reed's best? I know absolutely nothing about the Doctor, that's why I ask.
A lot of the raw power comes from the TARDIS, which has the power to completely destroy the universe at every point in time (and did at one point, before the Doctor rebooted the universe from inside the explosion...try not to think too hard about that one). And that's beyond its more well-known time travel powers.
A lot of his feats aren't necessarily prep, but instantaneous understanding and application of others' tech. He's usually stopping the guy with lopsided prep, not employing it himself. Still, he has tons of his own.
But here's some off the top of my head:
- In about 20 minutes on a non-military space station, and none of his own equipment, he improvised a device that would destroy all life in a planetary area. He ran out of time to modify it, but he was also in the process of keying the attack to a specific biology, so that it would only destroy a single species.
- He adapted technology that held beings in perfect stasis for centuries, and extrapolated it to a process that could keep an entire planet in stasis indefinitely. He also created a pocket universe in which to hold the planet, using the technology in the TARDIS.
- He's trapped someone in mirrors. Like, conceptually, when you think you see something weird in the corner of your eye in a mirror, you're seeing the poor sod the Doctor trapped there for eternity. No explanation was given for this.
- He's a wizard with teleportation, and has hacked numerous teleporting devices, as well as reversed the teleports of those trying to escape from him, by inputting some simple calculations into his sonic screwdriver.
- In seconds, he analyzed, understood, and reversed a device intended to alter a person's DNA...giving the Superman treatment where it affected those outside the chamber instead of inside it.
- Performed surgery on a human-pig hybrid with no prior knowledge of its biology, altering its DNA so that its lifespan would be longer.
- Reversed a device that was meant to destroy everything in the multiverse (omniverse? I'm not sure how they categorize it) except a particular species. Or rather, his intelligence did (a human had absorbed his Time Lord mind). The device tore apart reality at a quantum level. He obliterated the species in the process.
- Improvised a device with some science equipment that reversed a terraforming-in-process by eliminating only certain gasses from the atmosphere that were triggering the change. This was planetary in scale.
- Created a device quickly (though with his own supplies) that trapped a being who was sliding between one universe and another, so that he could analyze it and track it to the point at which it crossed universes.
- Wrote a computer program, from a cell phone, that set every digital clock on the planet to display all zeroes at the same time.
- From a laptop, remotely hacked a machine that was uploading peoples' consciousnesses into a Cloud-based online server.
- And he has things just lying around, like 3D glasses that let him see dimensional residue on people who have traveled between universes.
And that's just since the reboot in 2005. There's ~27 seasons prior to that where their grasp of reality was even more tenuous, allowing them to come up with even more plot device-y gimmicks and feats. Along the lines of such a priori arguments as "He'll find a way to win because he's Batman." or "Reed wins with prep," without having to justify it, "Because he's the Doctor," is a valid argument in defending him. There's only a few of those types of statements that I'll let slide, but that's one of them. He and Reed are on their own level in terms of haxx tech, prep, and intelligence feats. I'd give the nod to the Doctor personally, but no one else is close to either.