I know it will probably get burried but there are plenty of things to dislike about dany,

Aboslutly destroys cities in slavers bay and no she does not try to rule them except for mereen other than that she just destroyed them and moved on, if i remember right i think astapor is being run by a butcher king currently who just kills everyone. She is attempting to rule an area where she decided to kill a bunch of the leaders simply to prove a point and then refuses for a long time to even acknowldge she has serious troubles rulling and is on the whole "i rule cause i'm the dragon" binge. Her ego gets out of control for awhile when she can do no wrong and finally things are starting to crash down around her. which makes perfect sense because in the books she is just a young girl, she constantly fawns over darrio and before that the khal she acts like a fan girl to them whenever they are around, Thankfully her husband doesn't have a spine or darrio wouldn't even be around anymore let along still banging the queen. She is indecisive, reluctant, and often simply just childish. And to top it off she surrounds herself with ego strokers instead of listening to people who actually give her solid advice (the scene that sticks out is missandei in the show telling her about how when she doesn't listen she finds her own way that only she could do) people around her are putting up this pedestal that she thinks she can just jump on and suddenly rule, without learning customs, language, basic diplomacy and tactics. She wins by luck, and dragons not by some skill as a leader or amazing military ideas.

TL:DR --> Dany isn't great because everyone else has to hold her up and deal with all of her mistakes she make because really she has no idea what to do as a leader or as a person it seems.