For me, DoS and CoD.
DoS was ok at first, but it quickly became apparent that it was just an excuse to use Soma again. The story could have been handled better and the ending was too much like a saturday morning kids cartoon in which everyone is happy and is kind of open ended leaving the possibility for there to be another one. The AoS ending gave a sense of finality. Soma defeated the Chaos that would have turned him evil and thus freed himself from his destiny of being the Dark Lord. DoS took that and basically said: yes, we said he was free, but we decided to change that and now he's got to worry about turning evil for the rest of his life. Not to mention that it doesn't advance the overall CV storyline what so ever. Oh, and let's not forget the drawing of the seals which was a stupid excuse to use the stylis. We've all said it. DoS as it exists should never have been made.
CoD started out ok, but the quick realization of the lack of platforming and no real relation to the other games other than the cameos of Trevor kind of ruins the experience. Again, like with DoS, this game doesn't impact the overall CV storyline what so ever and thus doesn't matter. It's a shame. This game had a lot of potential that was wasted. The innocent devils could have been used to solve puzzles and grab items you couldn't reach. Hell, the number was kept to one of each type, instead of them spawning devil shards which allowed you to have more of each type, they could have been given their own personalities and actually had cutscenes in which they talked to you and other characters. Imagine in the first cutscene with Saint Germain if the fairy and/or the battle type weighted in and gave Hector their person opinions on whether to trust the stranger or not. Something like this could have added some much needed depth to the characters. Hell, it there were appearances of Alucard, Sypha, and Grant as well as a fair amount of platforming in the game, it could have been a lot better. So much potential and all wasted.
All that said, both games had potential and seemed decent at first, but I quickly began to hate them.
OoE was a tad difficult and required a fair amount of farming, but I felt is was a nice change to the other Metroidvanias that were either very easy or could be exploited.