What's in the meta on TT right now?

Hello, im asking advice on how to play TT. What are the current strategies everyone's following? I rarely play TT, and server i play is not that big, so there is no meta and things are different every game.

So, list of questions:

1. What are the top-tier TT champions? I guess ?
2. What are teamcomps right now? Are ADC's getting played?
3. Overall strategy? Dominate early, force Vilemaw, push and win?