This is a pretty clear cut case of team 2 having the overall advantage. However, both teams are so terrible in terms of composition synergy that it will come down to which teams EFFECTIVE playstyle is best utilized. Bot lane is pretty neutral provided janna doesn't position just awfully, so it should mostly be a farm lane unless ez and janna just make a ton of the same positional mistakes, the late game scaling edge obviously goes to trist, and so does the tower taking advantage. The jungle matchup hilariously favors nidalee however. There is no way fid can keep up with her clear speed and thus he has very little chance of keeping up with her early game pressure, which puts the odds of a snowball squarely in the favor of team 1. Team 1 mid laner has the advantage at all phases. Quin has significant advantages on Garen early in the game and should seriously punish him in lane. From the individual matchup analysis we can see that the matchups actually favor team 1 significantly, particularly in the early and mid game.
Ultimately what decides this game is two things: 1) Does team 1 make use of the early game advantages they have to siege and end quickly, and 2) Does team 2 play smart enough with each other to drag the game out for 35 minutes at which point their team's composition has a huge advantage in team fights and do they then PLAY to this team fight advantage with proper pressure management and vision control? Team 1 has a complete lack of reliable engage so its entirely on them to win with a snowball and by exerting pressure in all lanes at all times. And team 2 has nothing going for it aside from decent 5v5 potential provided they can pick the right fight in the right spot with Fid ults.
This is one of those matchups where the duration of the match probably decides which comp wins. 25 minute game? Team 1 is the victor. 35 minutes or more? Team 2 likely wins.
Both of these team comps are absolutely atrocious though.