I can respect fixtures for the organization that they add to the tournament, but they're effects in and outside of the tournament itself is what makes me hate them so much.
Every practice scrim outside of the tournament is played using the weekly fixtures (I mean why not? it would be stupid to waste the opportunity if it's laid out for you like that) but it reaches that point where it becomes so tightly repetitive within the same week that it becomes repugnant. Like listening to Darude-Sandstorm is fine every now and then, but listening to it 3 times in a row? holy **** geezus, just rip my ear drums out and run away with them plz. Tournament fixtures have affected practice scrim meta significantly, in a negative way in my eyes, and for that, I genuinely hate them. Playing the exact same maps with the exact same factions 2-3 times a week for over a month becomes disgustingly repetitive, dull and boring (at least to me.) I fully understand how some people may view that as a positive, that allowing "competitive" teams to practice on a certain map with specified factions would allow them to play that map to their best potential, but I feel like that says more about a team's ability to practice well on a single map rather than their general ability to adapt and be able to play well cohesively on ANY map with ANY faction at any given time, being forced to use all individual and team experience gained throughout their time playing warband on the spot.
As to Osiris' post, I feel like EU and NA history tell completely different stories. From my own experience in NA, the only really enjoyable matches that have been exciting and watchable to me are the matches that come through our single elimination final matches where picking is involved, and if you look at the last few tournaments in NA, picking has lead to very close matches that have gone into 3rd maps, and close matches themselves are inherently more entertaining than one sided matches that fixtures absolutely have the potential of creating given their random nature. I would say that these artificially occurring close matches stems from the fact that both teams have the ability to pick and play on a map they are confident in, and on a map that they may be weak on, as opposed to leaving it completely to chance to randomized fixtures that could, by chance, favor one team over the other.
If the fear you have is that teams will be able to pick their strongest map and that you have no way of preparing for it, then I have a suggestion that may be reasonable. Instead of getting 1 ban and 1 pick out of a map pool of 6 maps, let every team get 2 bans instead, and let the higher seed choose which of the two remaining maps gets played first.
If you think of this practically, this would mean that you and your team would have the ability to take out 2 maps that week completely, meaning that you don't have to worry about practicing on them, and you should be able to make an educated guess as to which maps your opponents want to ban, at the very least 1 of them, meaning that you should be left with maximum 3 maps that you would need to practice on for that week, meaning that the only real variation that would come of it are the factions played, which you have exactly half control over anyway, so it's fair.
In the case of a tie (always be prepared), out of the remaining 4 maps, have each team ban 1 of the maps, and have an admin or referee randomly choose one of the two, and if that map ends in a tie, play the other one, and if that one also somehow ties, rinse and repeat with the last 2 maps.
I'd prefer the way it's already written in the rules, but I think this is a fair compromise between choice vs fixtures, IF there needs to be one. I came into this tournament expecting it to work by choice from the beginning, but since Arys was trying to make the game a little more organized and accessible to newer players, he decided to go with fixtures for the regular season so that they would be able to play all the maps before the final stage and have it be organized, and that's acceptable. But I mean, we are all experienced players here in the final stages, we can and should be able to make our own decisions here. We know the maps, we know the factions, so those aren't limiting factors for us. I already endured 7 weeks of dull repetitive matches, so please, I beg you, no more. If anything, at the very least allow us to choose the factions the day of, even that should add enough variation to loosen the abhorrent repetition.