ADCs overall feel irrelevant...
One ADC + support usually has more wave clear and pushes the lane in or farms it safely. Supports can be so powerful that an ADC has to concede lane pressure and farm under tower. Assassins and fighters have gained so much burst damage that ADCs can't enter fights without a huge risk. You're either unable to enter fights because of extremely fed enemy assassins, or just clean-up for your team's already winning fight.
I'm not having much fun at the moment. The team with more assassins/ better assassins (Leblanc > Diana) seems to always win. Even if you're able to stall the game, as soon as your mid or top die the enemy just takes your base and wins.