So I couldnt find a thread, please merge if one exists.

With the choice of 744, 767 and 321 on the route, as well as three different seats in business (as I understand). What would you regular travellers recommend (I haven't been there in 5 years)?

I'm never getting on the 8am 744 outbound, so I'll likely reserve that for return (UD with potential for OpUp to F), so that leaves me with 767/321 around the same times in the evening. Which is considered the better of the two (and is either better than 744 on return)?

Incidentally if anyone has experience of Moscow-St. Petes and has recommendations there, it would also be appreciated.