Good question!!! It's always cool to know what musicians use when they're creating their tracks. Here's what gets regular use in my studio:
Digital Audio Workstation: Logic Pro X
Favorite Plug-In Suite: Waves
Software Synths: reFX Nexus, Sylenth, and the good ol' ES2 ;)
I used to be a plug-in hoarder from 2010 - 2013 and then I learned some valuable lessons, haha.