What are /r/PanoramicPhotography's favorite Products & Services?

From 3.5 billion Reddit comments

Try Microsoft ICE, I've found it's pretty good.

http://research.microsoft.com/en-us/um/redmond/projects/ice/

http://www.kolor.com/autopano/download/ also has a trial. Watermark for free version, but you'll at least know if it can stitch.

There is the open source one, but it's incredibly user unfriendly and I've had limited luck with it.