I prefer Bitwig for a number of reasons. Here's some of them:
1 - Side by side Clip Launcher and Arrange. I find it fluid to use both at the same time.
2 - You can open as many projects as you want at once. I use this constantly for housekeeping. I keep two projects open with one the main project and the other a scratchpad/storage area. You can quickly drag-n-drop stuff between projects. For example, if I record an audio or midi part and like it and it doesn't fit the current project but I want to keep it, I just drag it over to the secondary project or a 3rd project to do something with it later. I can do that without playback even being stopped.
3 - The modulation system is incomparable.
4 - CLAP plugin format. The u-he synths are my most used and the CLAP versions can make full use of the per voice modulation system and Bitwig's note expressions.
5 - Stability. Bitwig is the most stable DAW I have ever used.
6 - MPE. Bitwig records the midi channels as played and Live doesn't. There are ways I use my Linnstrument in Bitwig that simply will not work in Live.
I think Live is more intuitive for beginners. I would say that Bitwig is faster to create new content with once you learn it well. I especially like Bitwig because I rarely ever feel dead-ended. By dead-ended, I mean where I am doing something and then I get stuck and have to backtrack. For example, Ableton's Wavetable synth has a limited number of mod sources. Want an extra couple LFO's? Sorry, gotta switch to a 3rd party wavetable synth. In Bitwig, you can add unlimited per voice modulation to any of their instruments. And the modulation sources are far more flexible and powerful.
I also have come to use the track/group and project level modulators in Bitwig a lot. Absurdly powerful and the workflow is so good it feels like cheating
These of course reflect my priorities. If someone said they do tons of slicing and warping of audio, I would say get Live. It's better than Bitwig for that. I hardly do those tasks and mostly make all my own original content. IMO, Bitwig is better for complex sound design and for getting my initial ideas recorded with the least inertia and backtracking.
And like I said to start, you cannot go wrong. They are both excellent.