The best thing about TFT vs normal League.
You get to decide when it is over and give up.
You aren't held hostage by a duo.
Games actually go on for a while, so you can actually come back.
Someone can't int your game away.
Everyone starts out the same. Everyone has access to the same OP stuff. None of this "my role sucks" bullshit anymore.
TFT > League of Legends because it is already more balanced OMEGALUL
Edit 1: Also balancing around the pro scene affects the pro scene the same as how it would affect the normal player base. Since again everything is even from the start. A pro can't magically run something better than you. The only thing a pro can do is position better and know what items to go for. Which, is a just game knowledge.
10/10 would recommend TFT over LoL.