Handlebars are kind of like underwear - everyone has his/her favorite.
The choice is highly personal and it all depends on what you like. Name a bar type, and someone here has probably converted his/her Swift to use it (although I don't think I've seen a picture of one with three speed/north road bars... or Albatross bars). The only advice I can give you is to use a stem of the appropriate length based on the type of bar you choose
A good fit is vital to comfort... much like underwear.