Which one you would pick? for what reason?

I always use VirtualBox because I don't care to learn another. It's free. It works fine. I just use it mostly to run ParrotOS (or Kali) to learn hacking stuff.

Nothing is serious so getting something up in 5min or less is why I go with VBox.

been using vmware lately not to bad but probably other better stuff. creature of habit.

virtualbox, because its easy and im lazy

Vbox. nothing special I guess, just used to using vbox

Configuring the internet on VirtualBox makes me tear my hair out

With VMware, it's the most easiest thing to configure and use. Vmware is sleek

Qemu and KVM work together like bread and butter. Never going back.

QEMU/KVM with virt-manager. It's the fastest for Linux guests.

I use virtualbox and haven't had time to learn anything else

I use Virtual Box only because i find it simple and I'm used to it.