How wide is your ass?
Wide ass: B17, or if you want a sprung saddle Flyer
Regular ass: Team Pro
Narrow ass/slave to fashion: B17 Narrow, Swift, Swallow
^^^As above if you're keeping the bars level with the saddle. If you're thinking of raising the bars significantly, consider the B67, but you'd still probably be good with the B17 or Flyer.