Yasuo or Vi

Okay I want Yasuo because of how fun he looks and how much of a good damage champion he is and how much of his mechanics you can use and I feel that makes him very flexible. I want Vi because I don't have many other junglers besides really cheap ones and my main Rengar and I also have Shyvanna though I rarely use her. I Own Azir and Zed mid so I already have very expensive champions for the lane but not that many for jg. But my worry is that I will play Yasuo and feel like im getting shoved out of lane by powerful mages or that I will get bored of Vi like I have the other junglers and not play her a waste of IP. And I must say I really like the kits to be fun but also powerful. I like to have a fun time while most of the time winning and when im loseing I want to still be able to mess around at least and have a good time than stuck with a kit that's just kill or fail and have to go into the fight not doing anything good. What I like in a champion is someone with above medium damage and above medium sustain so they wont go into the fight and just wipe though for Yasuo I might make an exception. Idk really know :/