Bitwig is made by ex-Ableton engineers and honestly, it blows Live out of the water in terms of flexibility.
Any features in more recent Bitwig versions that stand out?
It would be cool if Bitwig would introduce a scripting environment similar to Max for Live.
Where they both fall down is in less capability for the piano roll and midi for more complex compositions and styles (orchestration) and although Live has made some moves towards improving that recently, they're both still way behind in that area.
Saying that, DAWs just have different specialization. E.g. for a long time midi support in ProTools was extremely limited. Cakewalk already had an excellent piano roll in the late 90s.