I like decidueye.
People like this are the people who ruin him: lonely neckbeards that live in their disappointed mom's basement and autistically talk about how they want to "Give it the shilling it deserves."
Stop.
Ash-Greninja was a mistake: all it did was lube up Smogonfags' dicks and create autistic screechers like you. Ash-Decidueye is only going to make it shit (or shittier, depending on your opinion) and, if you truly like the mon, you would like it as it is.