I've seen Tank Ekko win more games than AP Ekko straight up because of all his utility. AP Ekko is strong, granted, but the ability to outlast your opponent through CC, slows, constant AA's, and ulting/healing is just better than straight damage in his case.
Nekusen2 votesTank 
is still the meta.
He has poor AP scaling so building him AP is still subpar.
La9wa1 votesThey are both very strong right now. I saw some TSM games from the bootcamp in korea and both the mid and jungler are spamming him in soloQ.
Jbels1 votesI wish they would just retool his kit into a tank/y champion's kit, since he's way more fun to play tank then he is as an AP assassin. Atleast when you go tank you FEEL like a tough kid from the ghetto streets of Zaun. When you go AP you feel like LeBlanc's secret little brother =_=
ViperFangs1 votesI started playing ekko builder him both ap and tank he get killed so easily if his w is not landed then we Are gone 0/17/7 was a score of a ekko player who was level 6 with him
ViperFangs1 votesAnd yasuo one hit killed me playing as ekko I played many champions ekko is nice not op I found it out myself don't judge him seeing vids play him yourself
Critmaster Garen1 votesekko just has way too much utility to be balanced as an assassin.
its really weird, he has more the kit of a utility mage than anything else. easy farm/poke and zoning with timewinder, aoe cc with his w. too many slows and cc for s simple burst assassin.
theyd need to remove some of the slows in his kit to ramp up his ratios and make him work as an assassin imo.
