Agree, generally AY is good, CX very good.
Yes CX herringbone layout in Business Class probably not the best for honeymooners, you might feel separated:
http://www.airliners.net/photo/Catha...954b1d6510b8d5
A panoramic view to AY's A343 Business Class cabin (old fabrics):
http://media.finnair.com/fleet/a340/a340_business.htm
HEL is known for an easy and quick transit, never tried DME in Moscow.
Finnair Non-Schengen Lounge in HEL for Asia flights, panoramic:
http://www.helsinki-vantaa.fi/files/...Via_Lounge.swf