What profession to play and main

I cannot decide on something to main. I only have the 3 expansions that give the 3 elite specs. I’ve been indecisive and want to play something that I can make a main and explore the entire game with. That being said here’s some information to help with your opinions. I don’t want something with a hard learning curve. I’d like a mix of range/melee abilities. I am interested in all game modes. I’d like something that can do support and dps if I switch specs. I have an especially heavy interest in WvW roaming and fractals/raids. Thank you in advance!

TLDR: what profession is good at all roles and has range/melee combat that isn’t overly complicated based on the 3 main expansion packs only