Toxic, rude, selfish, and obnoxious players likely exist on every ship, in one form or another. I for instance ran into such a player earlier tonight while running the Swirling Inferno Urgent quest. Dude was pissy because he wanted to Farm the last one, as we were out of the thirty minute window to re-launch the quest, and wanted people to stop saving the civilians so the quest wouldn't end. I was sadly in his party, as he picked me at random, and accused me of playing the urgent correctly, even though I stuck with the team, and was nowhere near the civilians, and essentially stated that he was going to false flag/report my account, just because he couldn't get his way. I won't name names, but I found his profile on here so I could report him, dude is supposedly in his thirties , and acts like an obnoxious thirteen year old. That's just an example, adjacent to what the original post states.
They are few and far between on most occasions, but they do ruin people's day when you have the misfortune of running into them, and they act like they are gods gift to the world, and get upset having to explain things to the less experienced players, or get pissy when they are the only ones that want to farm an urgent quest. They are also the same players that think they are dealing the most damages to bosses, and complain when an aspect of a quest is failed, blaming everyone else, all the while having died the most on said quest. It's ego, hubris that drives them, and ultimately all we can do when they inevitably harass someone in game, or talk trash to someone, is to report them, block them and move on.
As for OP's question about which ship to go to, honestly, I'd befriend someone on these forums, and join their ship, or I'd take a transfer, if I had the money, and just see what each ship has to offer, or ask someone you trust whom already has. Basically weigh your options before settling down, if it's even necessary. You may have just run into some bad actors, and need to find someone on your ship that treats you right.