If you use the drop section then I’d go with drops otherwise I’d look at an alternative. Unfortunately it can be one of those try and try again things. I’d certainly look to create more than one hand position, there are plenty of bars:-
Big sweep like the Mary Bars, can be paired with barends inboard of the grips, gets you 3 good hand positions.
Jones H-Bars and Titec Copies I found a bit limited on versatility and the rearward section too short. However the Jones Loop Bar is great but expensive, a cheap alternate could be:-
http://www.rosebikes.co.uk/article/xtreme-pro-free-town-ii/aid:257352
Quite a few variations of Butterfly bars and then lots of North Road style or moustache bars. Or maybe go with some dirt drops set nice and high. I’ve even seen pics of bikes used for audax with aero extensions on.
One that might be quite nice if your bars have the space would be stubby barends inboard of the grips/controls, ergo style grips and outboard bar ends. Maybe on a low sweep flat bar.
The main thing for me is getting the controls where I like them, for me that’s more sideways on, ie Mary/Jones bars.