Honestly every season when I read the plots, they just look like trash. If all you can offer me is fanservice and comedy then I'm out. I love fanservice, but that alone is not enough for me to watch a anime anymore.
As a depressed old man, if it doesn't have dark elements and or drama/romance elements to it I'm probably not going to watch.
Re:Zero is probably the best one I've watched. I guess I enjoy sadder things than me.