One would be:
Simply put I like the idea of Light sabers + stealth (if im lazy) + tank / dps
I also would like to continue the Story of my Jedi Sage and this seems like a good opportunity
The other option:
I like the sound of a heavy armored healer/dps with a big gun in his hand. I've played healers in other MMOs before and its always a different challenge, which is a plus aswell.
Both good choices!! What server are you on?