At somewhere around 10 syllables, the English poetic line is at its most relaxed and manageable.
James FentonThe basic rhymes in English are masculine, which is to say that the last syllable of the line is stressed: "lane" rhymes with "pain", but it also rhymes with "urbane" since the last syllable of "urbane" is stressed. "Lane" does not rhyme with "methane".
James Fenton"Love" is so short of perfect rhymes that convention allows half-rhymes like "move". The alternative is a plague of doves, or a kind of poem in which the poet addresses his adored both as "love" and as "guv" - a perfectly decent solution once, but only once, in a while.
James FentonA poem with grandly conceived and executed stanzas, such as one of Keats's odes, should be like an enfilade of rooms in a palace: one proceeds, with eager anticipation, from room to room.
James Fenton