On which topic does Willam Wordsworth most like to write poems?

This is a very interesting question, because Wordsworth was interested in many different themes and topics. He is considered one of the most significant of all the English poets and his works are widely read and anthologized. His prose essay "Preface to Lyrical Ballads" is considered a classic work on poetry and his own philosophy on poetics. Although known variously as a Romantic poet, a nature poet, and a political poet, Wordsworth could be counted on to return again and again to one dear subject in his poems: poetry itself.

Wordsworth did not necessarily write about poetry or writing poetry in so many words; rather, his poems explore the ideas, emotions and points of view that enriched his work as a poet. In "Tintern Abbey" his reflections upon a favorite landscape inspire him to explore his feelings about nature and the important place it holds in his mind, heart, and spirit. But these thoughts and feelings are conveyed in a way that also honors his own writing ability and practice.

Wordsworth also wrote searchingly about human nature in his poems, in ways that allowed him to examine his own deeply-felt attitudes about writing, art, and the experience of being human. The "elevation of the mind" that he believed occurred through engaging with nature was central to his idea of what poetry should be.