Excited the most for comp. I think sudden death KOTH is good especially as a spectator, it will just be chaos or completely fucking boring. I feel like they're taking the popularity of CSGO and throwing it in and just hoping it works but I honestly think it will.
Competitive Payload in TF2 was never enjoyable as a player, not necessarily comparing the two but it's the only other competitive game I've played with any sort of payload. It was just boring and spammy, although most TF2 PL maps were most definitely not designed to be played competitively. I'm stoked to try it anyways.