IGN: Fabion
Playtime: 1830 hrs
PVP rating: 343
Vote for Nature Reroll Ticket: Yes
Reason: I have spent many PVP Coins and Pokecash trying to get the desired nature and failed, with the chances being 1/25 and the chance of getting the same nature twice can be really costly, implementing the feature to choose the nature that we want even with a higher pricetagg would be really healthy for the game. (I saw people complaining that this way veterans will become even better and "noobs" will lose motivation to play, veterans already try to fix their legendary natures so it doesn't change much if you just make their life a bit easier.)
Vote for Birth Island: Yes
Reason: I have seen many players getting one of the legendary dogs and then regreting their choice so it will be great to give the chance to get what they want now.
Also many players are bored of the legends that already have (putting me in that category too) and want something new, it would be a motivation boost to have the chance to catch a new legendary and try to put in a team and pvp with it.
So to close with birth island would be healthy for the pvp meta and would give more motivation to semiretired players (being one of them) to fully come back to the game.