Usually for me it’s:
1- Getting wrecked at mid. Sometimes we can turn it around with guerilla warfare, but if the other team is good, they’ll pick us apart as sitting ducks.
2- Teammates who don’t know how to play GW2 pvp. Examples include:
a: going far at the start, leaving your team undermanned for the mid clash. 90% of the time, they also die far. The logic is beyond comprehension: even if you win far, chances are you either have to leave it to support your struggling mates at mid, or your mates at mid get shredded to pieces and you have 3 guys plus the one about to respawn incoming to kick your kitten .
b: ignoring map mechanics: people fighting to cap a point in niflel, while the other team is killing the beast it needs to reach 500 points, for example.
c: people ignoring what the purpose of the game is: there was a match where i had to sit at home the whole time, because all the time there was this thief trying to take it. The thief wasn’t so good (he couldn’t kill me) but he wasn’t so bad either (i could’t kill him), but i could hold the spot just fine. Then why, WHY! if we only have one point capped, are people coming home to help me against the thief that cannot kill me? GO CAP SOMETHING kitten IT! I told htem not to come like, 20 times, and there was this necro that just kept coming… jeez!
d: people fighting forever over a spot capped by the enemy. Most of the time this is with numeric advantage, and yet, they dont capture, and yet, they keep going at it. even if they cap it, it’s a Pyrrhic victory.
3- Being outplayed by the enemy: not only are our teamfights awful, but they also kill me one on one. This never happened last season, but it’s happening in this one, specially against dragonhunters, a few good thieves, and 1 or 2 condi warriors that completely destroyed me. I just changed my build after the last match against 3 dragonhunters+2 thieves to be able to better solo them and to have a bigger lifepool. I have always won my 1v1s even when power necro was considered up, and being completely destroyed by a DH in 2 seconds is unacceptable from my point of view.
I win because:
1- i have a decent team and we are matched against a tough team that makes me work overnight to squeeze a last second victory, and i do work my kitten off.
2- i have a decent team and the enemy is just unlucky to cross in our path.
3- i have a bad team but the enemy is not so good either, so i can carry to victory by simply being mobile, capping empty points, and holding far against 2-3 enemies at once (only works against bad teams, see point d).
4- a few times, i have had a team that clearly outclasses me and carries me to victory. Last time it happened, i held close but couldn’t win a single 1on1 (because the other team had one of these condi warriors that was putting insane pressure on me) and they kept coming to save my kitten , while shredding the enemy team on mid.
(edited by Aenesthesia.1697)

my opinion: no normal mmo, as shiny and new as it’ll be, can be a threat to gw2 in the LONG term. Why? Gear. It’s as simple as that. You farmed to get your shiny endgame gear? No worries! Wait 1/2 months and we’ll release a new set that will rend the old one useless, so you could farm all over again! Fun, right???
one time it’s okay. 2 well, one can live with it. But after a couple of times it’ll just start feeling pathetic. This is why i left TERA, when i realized i have to chase newer and harder to get gear in order to be viable. This is why such games cannot be a long-term threat to gw2.