I'd get rid of mania. I tend to go hypomania to mania to mixed state to suicide attempt. I've gotten really lucky that the attempts weren't successful.

With depression I just isolate and hate myself. I skip all the destruction of mania in terms of sex, relationships, jobs, family, money...

(And my meds seem to keep depression at bay more easily than mania.)

I think a lot more BP2 people would skew toward dumping the depression and BP1 people toward dumping the mania.