Everyone says how Rein, Winston, JQ, etc are fun to go up against, but that’s because they have very clear counters.
The heroes who are “not fun to go up against”, like pharaoh or orisa or zarya are that because they are harder to counter lol
There’s nothing inherently more “fun” about facing a rein than an Orisa, but you can counter swap a rein super easily which makes it funner for you lol
Till JQ / Winston is fun to go up against.
Only Rein is fun to play against because he can’t really do shit again anyone until he’s very near.