PHOTOSHOP OR ILLUSTRATOR FOR POSTERMAKING

Hello Ladies and Gentlemen, I use all of the Adobe suite applications because, as madbanana mentioned, they go hand-in-hand; creating videos may require you to use both Premiere and After Effects, but sometimes Illustrator too (yes, for a video), and sometimes you'll need to edit sound with Audition, and to export you'll render faster with Media Encoder..yes, my friends, learn them all as it will make you a creative powerhouse.