ENVE's standard road bar is pretty round at the tops. The compact weighs more. Both versions are kind of porky though. $350 & 205g
Ax-lightness is pretty round at the tops as well. The internal routing is super easy to run cables/housing, etc...You'd have to contact them to get custom reinforcement in the clamp area if you intend to run clip-on aero-bars. Not a big deal, really. €359 & 157g
Either bar is worth the cost & in my experience as comfortable as any other bar you're gonna find.
If you're already in carbon bar territory...At ~$50 more to save almost 2 ounces off your bike, the Ax-lightness is a no brainer.
You might look in to
Darimo But, at €400 to save another ounce...& then lose it to reinforcements for internal routing & currently 2 months wait time for manufacture...I dunno. The Ax-lightness is cheaper, in-stock, has the features you are asking for at what amounts to grams difference.