Yasuo or Riven

So when I first started league on my main account a few months ago I was like, "woah this yasuo guy is pretty cool" so of course, he was literaly the first champion that I ever bought. I also bought like 2 skins for him because I liked him a lot so i was like "yeah I'll put money into this champ. But, my main got banned and I went to pbe and tried out riven, and i said "Wow this is a really fun champion, almost as fun as yasuo, if not then probably even more fun to be honest." I don't know if I should buy yasuo again though or if I should buy riven. I'm saying this because reflecting on the past when I was a yasuo main and then I see all these other people that are playing yasuo I just think to myself "Wow, idk if I should buy yasuo again or not, because riven is really fun."

But either way I just want opinions on who to buy, Riven or Yasuo because Riven seems to be more fun at times, but yasuo still has the one place in my heart if you know what I mean.[slayer-pantheon-thumbs]