In theory the bot lane of team 1 should win hard as Leona can just destroy Jhin and Talon can't do shit vs Vayne on lane, Akali shouldn't be able to do anything vs tahm and also they heavily outscale them when Garen just plays safe. The only win condition of the second team would be that Heca plays very good early and brings the lanes in front.
But I guess that this is a SoloQ game, so in practice Garen will be 0/3 after 5 minutes, go afk and make a boards post about how cancer ranged tops are, bot lane goes for stupid tower dives, overextends all the time and gets killed by Hec 2 times resulting in Vayne flaming the WW while the mid laners are just flaming each others picks in All chat, and in the end the second team wins after 22 minutes.