Moonlight Echigo

Hey all

I was planning a trip from Tokyo to Hakodate-Sapporo-Otaru.

Was thinking of using either the seishun-18-kippu or the Hokkaido & Higashinihon Pass.

A few questions:
1) Is the second Hokkaido pass valid with Moonlight Echigo?

2) I'd like to break my journey into two days - would Aomori be a good place to spend the first night (onsen perhaps?) before going up to Hokkaido?

3) Would Hakodate-Sapporo-Aomori make the best sense? Will probably catch a flight back to Tokyo in the end from Sapporo.

Thanks for any help!

1) Is the second Hokkaido pass valid with Moonlight Echigo?

Yes, both passes cover the Moonlight Echigo.

Would Hakodate-Sapporo-Aomori make the best sense? Will probably catch a flight back to Tokyo in the end from Sapporo.

If you plan catching a plane from Sapporo in the end, finishing your trip in Aomori will not make sense, at all.

only two days ??

I guess it would hard to trip AOMORI-HAKODATE-SAPPORO-OTARU-newCHITOSEairport in one day.

Thank you for your replies.

Sorry I meant:

1st day: Aomori
2nd day: Hakodate
3rd day: Sapporo
4th day: Sapporo

then back to Tokyo.

I wish I had more time though. Not much to do at Aomori it seems...