I could not agree more -- of all of the cooking dailies, Cheese for Glowergold is my least favorite. All of the cooking collecting quests usually involve a little shoulder rubbing with people doing the same quest -- Infused Mushroom Meatloaf is another one where it's usually every man for himself down in those sewers. But none of them are more annoying than Glowergold's quest. I don't know if it's just that the respawn time seems longer, or that there are fewer spawn points and more to collect (you need six glasses, which doesn't seem like much as collecting quests go, but it's a lot while doing it), or that there's no specific place to find the glasses (they're littered around tables, usually in restaurants, around Dalaran). But yeah -- every time the wine and cheese quest comes up, I sigh, knowing that I'm going to be standing in the inn straight across from the cheese shop waiiting for a spawn.
But just so this isn't a complete QQ post, let's give you a few tips for next time. That inn is usually where I stand, but it's pretty crowded -- it's definitely worth, after just picking up the quest, looking around the faction inn where you get the cooking daily as there's usually one or two in there. And I didn't know this, but apparently there are a few spawn points downstairs in The Cantrips and Crows tavern (so when you run down there for the Jewel of the Sewers, keep an eye out for glasses also). And there are four spawns in the Violet Hold as well (so you can stop by and grab those while picking up the Heroic and dungeon dailies).
This might help a bit, but the fact is that this is an annoying quest, made more annoying when someone swoops in and grabs that glass you were headed for. Bornakk rightfully says it doesn't need a nerf (and as more people get everything they want out of the cooking dailies, we'll probably see less competition out there), but that doesn't make it any less frustrating.