Hard time getting reacquainted with the game
Warrior is pretty forgiving, as is necromancer. I’ve seen people playing those “vanilla” class builds without the HoT elites. Elementalist as well I think and Mesmer, although Chronomancer (elite) is pretty strong.
Druid, Dragonhunter, Scrapper are all solidly elite only. Thief is debatable for a few builds but mostly is Daredevil (elite) only as well. Not that familiar with Rev, but most I see are running Herald (elite) so it must be pretty strong.
HoT builds tend to add sustain to classes which is the source of “HoT OP” comments in many cases.
You might consider posting in the PvP sub-forum for opinions regarding Professions and how they play in PvP.
Good luck.