It's a really difficult choice.
I'm for the chose match for the Bjorki's reasons.
An also because to be late of half an hour or one hour seems to be really crual. Everybody have a life and it's sometimes difficult to commit in time
But i'm for the first match for other reasons :
Personnaly, as manager, i'm spending a lot of time here. It's my pleasure. I'm here half an hour before working and perharps 5 or 6 hours the evening. I try to put the oop as soon as possible. Then, players have at least 12 or 14 hours to pick. Time is enough even if there is some different time zone.
But that's not the principal reason.
The principal one is about the game : you've to choose not only a winner, but also a match in a list.
I remember the AO discussion when one player ask to post on the last match of the day (Nadal/mathieu). The day was plenty of surprises, and a lot of people who picked at time had lost. I thought, and i still thinking that it can be easier to pick when a lot of matches have be done :
Suicide Tennis AO - congrats to Deck, Winner and Finalist !!
So... i'm a little bit undecided. It's not help a lot, i know.
Perharps the soluce is to accept a tolerance as long as the first match running