this is not a topic full of discussions about which profession is better to take, it's what you want to see in GW2, nothing more.
so to continue, i would like to see something with real melee, or to put it simple, no weapons a.k.a unarmed.
one would say a martial artist, while others would like to see one with one or more styles.
IMO it should be a choice, maybe something like a line of trainers that train you styles.
the basic style is jujitsu, it's in almost every martial art style so it's only logical.
after you're done training that, you can choose between 4 styles:
after choosing one of the styles, you can fight in that style and use it's advantages.
this does mean that you will only be able to learn any other style after you have " mastered" the current style.(you can do that by requiring all the normal skills of that style, the "master" title will then be full)
so this means that you have to do with that one style till you are a master, after that you can just look up to what you want to learn.
do know that, even while it's one profession, you can never use more then one style in a combo.(exept for jujitsu that is.)
so even while it works a bit like an assassin, you can't connect one style with the other.
now it's your turn......i think i got a bit overboard with my idea:P