Fastest way to level
Grinding the levels may make you hate coming back… You’re probably looking at like 40 hours (guessing) if you don’t have any boosters saved up.
It’s worth looking through your bank for XP boosters, level up tomes, XP scrolls, etc. You can get some astounding XP via boosters. If you don’t have any, do the WvW dailies every day. When you open the reward, it automatically activates an XP booster. You also regularly get full level up tomes from PvP, which won’t be the fastest way to level but it may be the most enjoyable if you like PvP.
if u have an original character that has had some birthdays, you should have a instant lvl 20 scroll from the gift. (these do not stack) so new toon, use scroll to instant 20.
follow cooking guide to 400 for cheap 10 lvls, use crafting boosters if you have them.
XP train in edge of the mists.
PvP you get Tomes of knowledge easily, ive leveled 8 toons to 80 just doing that.
always have XP boost food on you, cheapest is bowl of candy corn custard i think, 45min of +15%xp for kills. its dirt friggin cheap.
I hit 80 pretty quickly (30ish hours) without boosters/scrolls/tomes/crafting from just 100% completing maps. I just ran around quickly doing hearts, vistas, and POI’s. The XP you get gain far outweighs what you get from grinding mobs or doing the dynamic events and you get nice map completion bonuses.