The Fortress of Solitude
The commute for this one would be killer if you didn't have super-speed or flight on your side, but you have it admit it would be a pretty nice place to hang out. Now I'm not talking about the "ice castles" version you see in the movies and on Smallville...I'm talking about the one in the comic books.
This thing had gigantic statues, a bottled city called Kandor, a full-sized cruise ship (just for decoration!), a private alien zoo, and so much more. Not to mention the fact that it virtually guaranteed no solicitors at your doorstep. They wouldn't even be able to find the place or lift the gigantic arrow key!
Of course, between all the world-saving and the Daily Planet day job, I don't see how Superman spent any time in the thing.
The Baxter Building
Home to the Fantastic Four since the beginning and almost constantly since, the Baxter Building is the antithesis of the Batcave: It's located right in the heart of the busiest city in the U.S. so everyone knows where it is! Add to that the fact that no one in the team has a secret identity and you get the feeling it was begging for visitors.
Filled to the brim with scientific do-dads and even the entrance to the Negative Zone, the Baxter Building packs a lot of function into a small amount of space.
It took several years and multiple battles before Reed Richards finally bought the place. Before that happened, it couldn't have been fun working in that building.
"What's that sound? Oh great, Doctor Doom's attacking the top floor again. Now I'll have to take the stairs to go home! 35 flights of stairs! I'm getting another job!"
The JLA Satellite
A base in outer space is another way to keep the unwanted visitors off your doorstep. Unfortunately, there are those of us who have crippling fears of heights which would immediately strike this off the list of potential heroic hangouts.
This is definitely the most unsafe of the bases in this list, as any puncture to the hull would result in immediate and terrifying death for those who weren't built for outer space.
This base got a really bad rap during Identity Crisis, when Sue Dibny was assaulted by Doctor Light in it. To me that was something that could have been skipped over altogether.
The JLA no longer have this place, choosing instead to work out of the Hall of Justice. Those of us who grew up in the Bronze Age of comics still think of this place as the JLA's true home. Even the moon base they had for a while didn't seem as cool as your own satellite in space.
The Avengers Mansion
This one is cool because...well, it's a mansion. It's located in Manhattan (where all the cool heroes hang out) and has been the sight of several titanic battles over the years. Tony Stark originally paid for and built the thing for the Avengers back before they knew he was Iron Man and it's served them well over the years.
The mansion has been the site of several heart-wrenching battles. The "Avengers Disassembled" storyline saw the death of Ant-Man and Hawkeye there before it was destroyed. The Masters of Evil also came in the ripped the place to shreds at one point, almost killing Jarvis in the process.
The Avengers moved to their own floating island/building for a while. Big surprise here, but it was eventually sunk during an attack in the "Acts of Vengeance" storyline. Recently it was rebuilt by Stark and given to Luke Cage as a base for the "New Avengers" after the events of Civil War.
Hands down the coolest place to live on Earth, the Batcave won our reader's poll of best overall base and it's easy to see why. Besides being hidden in a cave (and what guy doesn't think that's cool?) it's filled with the latest gadgets and goodies...along with an awesome car, boat, and plane at your disposal at any moment!
Don't feel like being in the dark? Well, you get the best of both worlds here by just walking upstairs to stately Wayne Manor! Now it's nothing but fireplaces and flat-screen televisions in every room, along with your own butler! No more cleaning up after yourself!
Actually though, there's a possibility Batman could have been a bit of a hoarder with all that junk he kept in there (a giant penny and a mechanical dinosaur? Seriously?). Also, what's the point of having such a boss base and never letting anyone else see it? I'd have friends over all the time, which is probably why I'm not the Batman (or am I?).