Left and Right state: there are no faults to mention in either poem.
In judgement: both Left and Right here refer to a ‘person’ (kimi), with the Left’s ‘making her an offering’ (nusa wa sen) that she might ‘trail in my direction’ (ware ni nabiku ya), while the Right’s has left his heart on Mirror Mount and ‘is not in haste to rise and don his travelling garb’ (isogi tatarenu tabigoromo): each of these poems is evocative, and makes effective use of wordplay, with the Left’s ‘make her an offering’ certainly resembling something I have come across previously, but the initial ‘goddess Asake’ is poor. The Right’s ‘Mirror Mount’ (kagami yama) is something I am familiar with, and this has a gentle tone. Thus, the Right wins.
The Right state: ‘did sleep’ (neshi) is particularly unimpressive. The Left state: ‘more than sleeves’ (sode o kagiru) is, perhaps, over-definite.
In judgement: in the Left’s poem, despite ‘did sleep upon these blankets’ (neshi samushiro) referring to something which definitely exists, it still sounds as if there is not much poetic expression in the poem. ‘Is a memento’ (katami ga tera) fails to resemble ‘for blossom viewing’ (hanami ga tera). As for the Right’s poem, I certainly would not say that ‘tears on more than sleeves have that effect’ (namida wa sode o kagiru nomi ka wa) is over-definite. It is somewhat difficult to make out on hearing, but the configuration is poetic, indeed, so the Right should win, it seems.