Did you seriously bring up LoL, a MOBA? The gametypes are nothing alike at any point. Without Holy Trinity there is only zerg. You cant control fights and it just turns into a kity chaotic mess where enemies run around all over the place. Fighting in dungeons in GW2 is basicly everyone doing as much DPS as possible and the person with agro kites like a monkey until some else takes agro and repeats the process. Theres no strategy or tactics involved whatsoever, just mindless zerging. Theres no "team" without holy trinity, everyone plays for themselves, your so buys avoiding mobs flying around everywhere that neither do you care what the others are doing. All the while the heavy armor guy desperatly tries to get agro or atleast cc the mobs without succes. Its really really horrible. Watched the TESO presentation and it was equally as horrible there. The crab enemies where all over the place, one person did some AoE and all adds instantly ran for that person, another person ran his own marathon all over the place back and forth.