It changes from day to day. But since I'm riding this one all month I'll say this one.
In this pic it has all original components. Saddle and post are not original. And the bars are my preference over any bars period. I especially like the contrasting black colored accessories. It currently has gripshift on the end of the aero bars and a 7 speed freewheel instead of 6 now.
All my Ironman are equally good looking.