Question is in the thread title. I'll leave the poll available for mutiple answers.

One thing is for certain, I absolutely hate watching stuff sitting at a desk in front of my PC. I don't know how many of you do this regularly, but it's not convenient or comfortable.

I have an Apple TV and Roku 3.

Mostly I use the Roku 3 and stream via Hulu Plus, Netflix and Amazon Prime. I also use the PlayOn app to stream Web content to the Roku via my PC.

Chromecast and Roku 3. Plex server on PC.

I've got a lot of streaming devices. But the only ones I use are the Roku and Apple TV. Between the two of them, they cover everything I want to watch.

Mostly via my Roku 3, but I'll occasionally catch an episode of Survivor on my laptop or another favorite on my iPad while traveling.

Mostly through my Apple TV, Airplay from my iPad, and occasionally I'll use my phone when I am not at home.

Currently, I mostly just use my Chromecast to stream from Plex, Netflix, YouTube, etc. I used to be a game console person for those, but the Chromecast is just so convenient. I also stream to my TV, PC, etc. depending on the situation, but when it comes to shows and movies, it's 90% on the big screen.

Just my Roku 2.

Mostly Hulu or Netflix through Xbox or my BD Player.
I very much prefer my sofa and bigscreen, but sometimes I'll watch a 20 minute episode at my desk on my computer.

Roku stick for some like Vudu. My smart tv for Netflix or YT.

Various apps on XBOX Live

Xbox Video and Hulu Plus trial on my 360, Amazon Prime on my 360 and PS3.

Roku 2 on the small TV. Xbox & Oppo on the projector.

If I'm in my living room, I use my PS3 to stream. I have a Roku 2 in my bedroom. I stream stuff on my laptop or desktop at least once a week, if I need to catch up on shows that are available on regular Hulu. I use my iPad to stream when I'm traveling. I ordered a Fire stick, but that won't come until after the New Year and I will probably starting using that in my living room.

I'd say 85% is done though the Roku3 via the TV...but sometimes I stream on my tablet, sometimes if I'm working at the computer I'll throw something up in the corner.

You forgot HTPC. Too few damn streaming options!

I have a Roku 3, and a Blu Ray player with streaming services installed on it.

Downstairs TV we mainly use the Roku, but also use the TV itself or the bluray player sometimes.

Upstairs, we mostly use the Xbox 360 but just got an Amazon FireStick.

I use my ATV for Netflix US and Hulu Plus.
For other Netflix countries, I use my PS3 or I use my iPad3.

I just steam Netflix on my PS3.