I'd like to take a shot at tanking in this game. I've enjoyed it in other games and it's really frustrating to get into a group for a dungeon only to find that the tank is terrible, so being the tank myself would eliminate that possibility (in my eyes at the very least).

OTOH I like being flashy and blowing shit up too.

Both classes seem pretty simplistic to play. THM looks outright boring until you get your proc traits later on, but I've seen videos of GLDs literally doing an entire boss only using RoH combo and a couple defensive cooldowns.