I just recently aquired a new bike frame. with it came a hatta swan bottom bracket. im curious to know what kind of crank arms i should use to achieve the straightest chainline.

ANS: sugino 75 crank.

i guess it would depend on what hub you're using too...

I can't say what cranks, because I don't know the BB spindle length. But they are ISO tapered so your choices are mainly Sugino 75 or Campagnolo. You can be reasonably sure the BB was previously on 75s; if nothing else, you can flip it on CL/eBay for some money.

im going to be using 110 phil wood hubs.

It fits any cranks made for Keirin /NJS = ISO taper. Spindle length will determine which crank manufacture.

isnt there only one spindle length that the hatta bb comes with

Dura-Ace FC-7600 track crankset will work fine too. The Hatta axle is 109mm.