Let's talk about Hecarim
I've played Hec since his release day, and if anyone ever asks me the generic "Who's your favorite champion" question, I always answer with Hecarim.
Ever since his release, he's been in a weird spot in terms of balance. In Season 2 he had no real purpose as a champion, and come Season 3 the only reason he functioned was because of Elder Lizard and Iceborn Gauntlet combined with his intense healing/scaling during the late game.
Hecarim's kit is designed in a way that pigeonholes him into building damage items before tank items, and in this design lies the problem with him. Hecarim's Q has pretty much no purpose unless you've got damage, if you decide to build like a pure tank then it's a useless ability. This was fine before his W got nerfed, as it healed him enough to where it didn't really matter if he had tank stats, but now that his W barely feels like it does anything he's incredibly easy to kill during the phase of Lizard + Gauntlet + Boots. It's not until you have at least a Randuins/Visage that he feels like how he should, but even then he has problems.
I don't really know what it would take to fix him, but he definitely has problems. He doesn't have the cc or base damage to justify building like a pure tank, but his W doesn't heal him enough to make building damage items as effective as they should be. His kit is counterproductive, and his build isn't very enjoyable. He needs so many items to function that he feels like he should be a laner, but that's obviously not functional either.
Riot response would be nice.