TLDR: I vote to not ban; people are overselling the fact of Garchomp's amazing capabilities/how it's unpreppable and that in such a newly brought up meta, encouraging people to vote to ban a mon with just few experience in the format as a whole is just a terrible basis to begin with, arguably host another tour as this was most's exposure to the format as a whole.
You can ignore this part but I'd like to list my credentials on why I think I can offer insight in the Chomp ban, I have done approximately 4 individual drafts of BW (2 of which being Cucumber Cup where I got booted out of pools by its finalist Jozin (my goat) and a person I severely underestimated (BookofConke) and the other being in ZTL classic circuit, where I placed in the top 12, where I led a 6-1 record (loss at the 7th round where the game didn't matter) during its Swiss stage, and losing to Freetle For Wii U then g_heathbar in bracket). And I have also done 4 team tours where I've helped build/draft or primarily played BW, one of which being MPL, where my record was 2-4 for reference. So I've had a ton of experience, by my opinion, in terms of this meta.
There are two major concerns that come up in the argument for banning Garchomp; it's a difficult mon to prep for because of its flexibility and raw power and then imagine the healthier meta with Garchomp banned.
On the grounds of the first concern, undeniably this is a true argument on the surface, yes, it's an amazing mon who against the teams whom didn't draft properly can feel overwhelmed by the dominant combination of both a dragon in gen 5 and a ground to punish one of a classical checks to dragons, steels. It's a mon whose typing makes it take almost all hits besides the occassional hp ice that most teams have to slot in just to make sure Garchomp doesn't set-up or flat-out dish out a ton of damage, so it can afford to be an annoying pestering wall, like a sub toxic eq set against the right teams. And if neither an offensive or a defensive set works, you got the good old reliable rocks that you can throw on it or even a scarfer with Draco as it's the fastest dragon of the tier. Yea, a mon like that should be banned but I think a lot of people fail to understand that Garchomp just can't be all that. It's much more flexible than probably any mon in any other format, but it just can't win it all... Yes, you can be a SD set, but it often fails to faster mons who either naturally have ice moves or just run hp ice, which if you aren't drafting in BW, you're asking for it in general by not just Garchomp. Yes, you can be a banded or scarf set, but you run the obvious flaws of running such a set and even if that move just is Outrage or Draco Meteor, two of the most dominant moves in the game, its much easier to prep for. Yes, you can run a defensive set, but it often isn't great against a team in general as the meta is rather explosive to state the least. And yes, you can just throw up rocks and click buttons, but this often leads to either a 1 for 1, or just rocks up. In terms of prepping for Garchomp, the simplest way to put it is that you need a mon faster than it and you need a mon that can take a +2 eq/outrage and revenge back; that's been my general proceedings on how to handle the mon. And to be honest, you do this even without even thinking about Garchomp. I think in this meta particularly, despite whether or not Garchomp gets banned, these two things have generally been staples in every BW draft I've seen to truly succeed, especially with just how the meta is. So if you find yourselves struggling as such, it's more or less that you need to wrap your head around how the format is as it's the most different to any other generation in my opinion, besides like ADV with the phys-special split. Ofc, Garchomp is the number one pick of this meta for all the reasons higher stated but it's much more of just faulted for problems surrounding the meta as a whole. And this more or less leads into the second concern that most people state, with Garchomp banned, the meta becomes healthier.
Dragons as a whole are a problem, because the meta so clearly wraps around them unlike any other meta and for new people, that's a struggling concept to get behind. People who aren't used to this meta will learn to understand by their next draft, there are certain things needed. Most experienced BW drafters understand that you need a mon 108 or faster, so you have mons that can speed-tie or outspeed mons like Terrak, Chomp, Infernape, all the 100 speed tiers, etc... because they are very strong. If not that, you usually either have amazing priority or a really reliable choice scarfer, whose often used to handle dd mons like Salamence, Dragonite, Haxorus, etc or scarf Kyurem, Kyurem-B, Hydreigon, etc... BW in my opinion is probably the toughest format to draft for because its the format that requires actual thought... Banning Garchomp isn't going to make the meta healthier, it is going to feel the same, For starters, I strongly believe that in a meta dominated by Dragons, the ban of Garchomp, whose arguably the least threatening dragon in terms of using its dragon moves of the high pointers, will make that problem worse. Secondly, and correct me if Im wrong, but most people who are arguing to ban Garchomp just played from DWL and is indirectly correlating Garchomp being the problem with just the format in general. In a meta that's still working to be defined, the banning of Garchomp just makes no rational sense. I implore people to hold off on voting to ban the mon because like prior drafters have stated, the meta is just kicking off and banning Garchomp is just people wanting to make hasty decisions, either because they got a bad taste of the mon due to just not understanding the format, or just want to leave an ever-lasting effect on the BW draft meta due to egotistical reasons. If Garchomp supposedly still feels "dominately" broken, then have another suspect test after another tour with BW in Smogon because now people will have a much better understanding of the meta and hopefully realize that Garchomp isn't exactly why the mon itself felt so hard to prep for, but rather a failure to draft properly to begin with in such a new format. You'll see that Garchomp isn't much of a concern, still understood as the best mon, but not a mon that's clearly broken.