If i had to rank the top 3.
1.- Dragon ball is the undisputed king of LatAm
2.- a very close second is Saint seiya (I couldn't, find a single soul that watched SS omega beyond season 1, fuck even the old watch dropped that shit faster than a nuke after Ikki showed up.)
3.- Pokemon, the anime dropped like a fucking bomb out of nowhere and it remained, fuck i saw some acquaintances make a small comeback to see Ash's victory and farewell.
After that is murky waters, Yuyu Hakusho, Slayers, Sakura card Captor, Captain Tsubasa, Evangelion, Ranma 1/2, Sailor Moon, Candy Candy, Samurai Pizza Cats, Gundam Wing, Heidi, Remi, Inuyasha, Shaman King. My pick for a fourth place would be Digimon, everyone fucking knows the S1 OP.
Every generation has its favorites and it varies from person to person, among my Parents, mine and my nephews generations there's a wide array of the top 5, and top 10.