Legendary or Ascended?
Ascended should be quite a bit easier… but they do use somewhat different materials (obsidian shards are the big crossover, I think, but you do not need many for an ascended weapon).
Hobwash
[TAS] – The Asuran Squad
Devona’s Rest
[TAS] – The Asuran Squad
Devona’s Rest
Assuming you don’t want to wait and just buy the time gated materials, an ascended weapon would cost under 100g. A legendary on the other hand would cost 1540g.
The only reason to go for a legendary is for the look.