I arrive @ Atatrk Int. in Turkey, and going to Sultan Hostel near the Blue Mosque. Which is the best way to get here with, a bus or train ?
The "best" way depends on whether you want cheapest, fastest, easiest, or something else. Here's a website listing some alternatives. It is also a wonderful resource for Turkey in general. http://www.turkeytravelplanner.com/go/Istanbul/Transport/airport_trans.html