I have a few more lenses floating around, but the ones I use regularly are:
7Artisans 18mm f/6.3 on an NEX-3n
It's a bad lens, but it is an old, low-resolution camera. The process of taking an image with it is tactile and satisfying and I think I'll get some keepers out of it just because this combination really can go in a pocket. I've taken it with me everywhere over the past week since getting the lens.
Samyang 35mm f/2.8 (mainly use it on the NEX-3n as well)
I hate this lens on full frame. It has no personality and is mediocre. But on APS-C I actually like it quite a bit. The center has better optical qualities and it pairs well with the small NEX. There are certainly better and smaller options made for APS-C.
Zeiss Planar 50mm f/1.4 on an A7II
Big, old, and utterly fantastic. I don't think any other AF 50mm for the mount has the same rendering as this, so while it isn't *the best* from a technical standpoint and is certainly outdated, I love it.
Tokina 20mm f/2 AF on an A7II
It is a lens I am emotionally attached to because it was a gift from my grandfather who has passed. It is solid and I use it quite a bit, but it is not the 20mm I would recommend to people. It is a bit larger than some alternatives, it is prone to some flare issues, the AF isn't as good as more modern options, and while it is sharp stopped down I do think that most of its competitors are as good or better. Still, if you find it for a bargain and need a 20mm I wouldn't hesitate to say go. It also has a bit of that 3D "pop" in the right lighting conditions because you can get some background separation at f/2.
I sold most of my equipment in graduate school, so I will slowly reaccumulate. The one I miss greatly is my Voigtlander 180mm f/4 (the prices have dropped back down to sane levels so I may reacquire one in the future). I also have a Canon FL 55mm f/1.2 gathering dust, and a Sony 16-50mm kit lens that I sometimes use on the NEX, but with the 7Artisans I don't think I'll take this out all that much.
I am going to be doing a lot of photography over winter break and will assess what seems to be missing after that. Honestly, my highest priority will likely be a new camera so that I finally have something with modern autofocus. I've only had a Rebel XT, NEX-5, NEX-3n, and A7II, so every time I pick up a modern camera I am naturally shocked by ... how good autofocus can be.