Aesthetically speaking, would you rather have the bone structure of a Klingon or a Cardassian?
I think a Klingon bone structure would be more beneficial, it would take time to adjust to the new ridged forehead though.
Would you rather share quarters with a Klingon or a Changeling?
A Changeling, I'd rather accidentally step in a bucket of goo then upset a Klingon.
Would you rather become a Borg who gets freed after a day or spend a lifetime as Kamin in a day like Picard in The Inner Light