What Makes A Champion Fun/Frustrating to Play Against?

Recently there have been a lot of threads regarding and the current rework being done by CertainlyT. In a lot of these threads a recurring comment I see is that CertainlyT doesn't make champions that are fun to play against. Now I hope this doesn't become a CT hate thread, but I am interested to know what other players think is fun or frustrating to play against.

I have laned against a , , , , , ect. I have lost some and won some, but I have never really considered what it's like to play against them. In most cases I get the most enjoyment from beating my opponent while they are playing a super strong champion. The greater the challenge, the better it feels to succeed. I love it when I dodge a thresh hook or blitz grab, I enjoy locking down a kalista, I find it hilarious baiting a riven under a tower. I remember watching my brother play against a , and getting him to bait out the pole hope before he tried to go all in. It is a mechanic that I have in the past seen a lot of people complain about, but I think there will always be interesting ways to counter abilities and beat an opponent. However, that leads me to to the question "what makes a champion fun or frustrating to play against?"

Based on what I have seen on the boards it seems that people are very quick to declare a champion as having a frustrating play style or being cancer. And I get it, I hate being stunned or constantly dodging endless skill shots, but I have always looked at it as I got outplayed, not out picked. Do most people prefer the challenge of facing a mobile opponent, or the ones that can simply delete you if you make one wrong move? Do people prefer the farming game, trying to slowly get ahead in cs until they can muscle their way through the lane? Or do most people prefer the less punishing lane opponents, where you feel you can relax a little more and engagements are a bit more drawn out?

If I was to put together a list of champions I found unfun to play against it would be something like and . I honestly find his ult frustrating and boring at the same time. It doesn't really offer any counter play, and I have to just sit there taking damage until it's finished or it gets cancelled. And I don't like simply because it seems that even if I can beat her in lane, someone else will get her going.