It's one of the more fun "OP" decks to play IMO.
As far as current Legacy, I know some Nic-Fit builds run Recurring Nightmare. MTGS has a decent primer about it here. It's basically a Green Sun's Zenith deck that runs as more of a control build then Maverick. Look pretty solid, but I've never played it.

Awesome, thanks! I'll check it out!

I forgot to mention it, but I have a huge fondness for prison decks. Something about shutting the opponent down slowly and gradually is just fun. And it's usually "clever" combos that get the work done. I have a terrible time playing control because I'm always so anxious, but if it's a Prison deck, I can relax and let the pieces fall together.

First prison deck I ever made on my own was something like centered around Winter Orb, Pendrell Mists, Propaganda, and Nature's Revolt. This was Mirage Tempest Standard before Exodus made everything super-utility combo. That deck would just shut you down and made you cry. I loved it. Borrowed the basic concept from an article in InQuest that just tried to slow the opponent down; I added green to shut them down entirely. Good times.

I've also had a Modern mono-white Hokori, Dust Drinker prison deck for years that has never quite worked right. Good times.

I have a tendency to draw towards making mean decks and then find out I'm too much of a wuss to play them.

Red/blue Wee Dragonauts was my favorite deck when I played. Bam bam bam pump spells, bam swing for 24, gg qq

Necropotence

Stasis!

Blue Tron in Modern.

Natural War Zone. I haven't even managed to assemble all of the pieces yet, but I've been working towards it ever since it was featured in From The Lab. Basically, it's Contested War Zone + Mirrorweave + Nature's Revolt = Gain control of all creatures and lands.

Also a deck that the local shop owner assembled that used Nivmagus Elemental and Possibility Storm to get out Borborygmos Enraged, and/or Omniscience alongside Enter the Infinite. It was a thing of beauty, let me tell you.