TellTale. For sure.

At this point I'll go with Square Enix.
Looking at the track record of Square(soft) titles and then compare it with the list of games after merging with Enix, it just doesn't look as fantastic anymore.
No wonder SE is in a financial crisis.

Quantic Dreams, Rockstar and Bethesda.

There isn't a game from those developers that I ever liked as much as people said I would. I find them extremely overrated.

Nintendo, platinum, and square

nintendo, bioware, bungie

I must say Naughty Dog. I don't think their games are bad, but they aren't the masterpieces people are calling them.

How are they overrated?

Watch yer wordz m8! il breik ur bonz if ya sei somfin bed aboot old Ataree!

Are simply posted developers we don't like, or developers were think are overrated?

Rocksteady, batman AA was a piece of huge turd that everybody praised and loved.

lol all of the xbox fans saying naughty dog. anyway i'd say bethesda.