There are indeed many Meme coins or Dog tokens in the crypto space of which the first is Doge coin and it was the hype of Doge coin that caused the creation of a good number of them and while some like Doge and Shiba Inu are still standing and somewhat relevant, others are either struggling or gone.
Now talking about the lead Dog coin, I would say Doge coin, the reason is clear, it started the trend, survived many phases, and was later backed by a prominent person who drew attention to it, of which the attention made people to buy and the price skyrocketed. Shiba Inu on the other hand, is also good but kind of banked on the hype of Doge coin, thus I can give the second position, at least the community also are active and strong.
When you are comparing all of these together, you end up making a choice, this is basic manipulation that makes people not realize that they are tricked. In marketing world we call this (in my nation, I am loosely translation) "forced optioning" and that is a good way to make someone like something a bit more. For example if someone asks you "would you rather drink coca cola or pepsi" you may pick an option, but nobody gave you water option? not the orange juice option? no whiskey? They just gave you pepsi or coca cola and that forced you to pick one and make it sound better.
All these memecoins are horrible, doge is horrible, shiba is horrible, babydoge is horrible, ALL of them are horrible, there is not a single good one in them because they are all horrible stuff that has absolutely no reason to even exist. However for some reason, people make this topic sound like doge is decent.