it's six of one and half a dozen of the other
US /ɪts sɪks əv wʌn ənd hæf ə dʌzən əv ði ˈʌðər/
UK /ɪts sɪks əv wʌn ənd hæf ə dʌzən əv ði ˈʌðər/

1.
どっちもどっち, 大差ない
used to say that two things are equally good or bad, or that it does not matter which one of two things is chosen
:
•
Whether we leave now or later, it's six of one and half a dozen of the other; we'll still hit traffic.
今出発しても後で出発しても、どっちもどっちだ。結局渋滞に巻き込まれるだろう。
•
You can choose the red one or the blue one, it's six of one and half a dozen of the other.
赤を選んでも青を選んでも、どっちもどっちだ。