What's your favorite UV tools? Unwrapping, packing etc

I see quite a few different options. Some seem supported, some seem to have died off. What do you personally use to do your UV unwrapping, packing etc? Anything that makes the process easier, less pain free. Better UI, even if it’s not adding any new tools is welcome!

-uv sa packing.
-uv statistics.
-uv squares.

In blender you need addons to make the work better and easy because it’s really forgotten. In GSOC2016 we were going to have new tools, addons implemented in the core,… and nobody know something about. Yesterday I tried the branch and the only thing that I found, the pack system, didn’t work.

luckily ambii make the UV sa packing that solve all the problems frm last years.

Hey thanks! I found SA packing and Squares but I couldn’t find UV Statistics?

Also found this when I looked up UV Statistics? https://blenderartists.org/forum/showthread.php?391573-Add-on-Magic-UV-v4-0-%2528Copy-Paste-UV%2529

The thread on it says it’s included by default in the official build now but I don’t see it in my add ons list.

My bad, here the link about ‘uv statistics’

Cool, thanks!