>C++
The language for any kind of power application. I've used it quite often, though not as much recently in my career. I've primarily worked with C++ in three ways: embedded C++, QT, and graphics programming. The language is radically different in each of these. It can be a nasty language from time to time if you're not careful, but it gets the job done better than most.
>JavaScript
I can't stand this pile of puke, but it's one of my most used languages out of necessity. I've written frontend JavaScript, Chrome extensions, Node, and even that poor Johnny5 bullshit for Arduinos. Quite literally any language that transpiles into JavaScript is better than it.
>Java
Haven't touched since college.
>PHP
Super shitty, though I'm not sure if JS is worse or not. I've only recently started working with PHP professionally due to unfortunately needing to fix bugs in an older codebase. I cannot stand its lack of consistency. One thing I do like is that unlike literally any other web stack, PHP has a hilariously simple solution to concurrency.
>Ruby
We hired one of those hackathon nubs last year around this time, before we realized we made a terrible mistake. He only knew RoR. I think Ruby and RoR are fine, and I can see the appeal, but it's left a bad taste in my mouth ever since we hired (then fired) that idiot.
>perl
Played with it in college once after seeing it was a core dependency for the Linux kernel. Never really touched it afterwords.
>Lisp
Never touched it after SICP.
>VB
Only used it once when I was a kid.
>Haskell
Messed with it when a read "learn you a haskell" but other than that never really did anything with it.
>Python
My general purpose scripting language. I've never actually built big apps in Python, but I've used for countless little scripts here and there, both as utilities to bigger projects, and independently.
>C
Used to be my primary language during my embedded systems days, still use it here and there for the occasional project.