i dont know if its objectively better, but ill always be happy to shill one way heroics. theres a "mystery chronicle" version by chunsoft but i dont really recommend it unless you really love the idea of cameos or are just starving for more one way heroics. id probably enjoy it a bit more if the music werent so weak in comparison. theres a mod that restores some of the music from the original owh but it doesnt work very well.
have you tried mystery dungeon sky? its probably the best pokemon one.
if you can emulate psp zettai hero project: unlosing ranger vs darkdeath devilman is alright but it will turn into a grindy shitfest if you get in to the post game. its by nis after all.