Guild Wars 2

I wanted to ask you guys which classes you think are among the best for endgame pve and dungeons. I started out playing an engineer but I am not really liking the class too much. I was going to try out ranger but than I saw some posts on different forums (I think this was one of them) saying that while rangers are very strong in PVP and solo pve, they are pretty weak in dungeons and endgame pve (events and such). So I have also started looking at elementalist because I read online that they are pretty strong for pve. I know Guild Wars has always been more of a pvp focused game but I generally only play mmos for pve. I only pvp with friends here and there. I know that technically all classes are supposed to be viable for everything but I also having been playing mmos for a while and know that there are always imbalances and there are always some classess that are more powerful than others. I would like to know which classes those are for endgame PVE in this game. Thanks for your help in advance.