I edited down the original question. I think that both thinkers would see their role as being equally influential. Wordsworth and Coleridge collaborated so openly on so much in terms of defining the essential points of Romanticism that their contribution would have to be seen as shared. Yet, I tend to think that Wordsworth would be seen as having a greater impact on modern criticism because of the volume of work he produced and his willingness to be so openly identified with the Romantic movement. With Coleridge, there was a desire to move into a philosophical line of thought that was more wide open about the nature of intellectual ideas. This was not where Wordsworth focused his attention. The ideas about the artist, their presence in the world, and their relationship to their art are conceptions that Wordsworth articulated and embodied in his time as being considered the leader of the Romantic movement. Over time, Coleridge was viewed as more of an auxiliary figure in this configuration, perhaps because of his own intellectual ruminations which proved difficult to classify as opposed to Wordsworth's, which were more in line with Romantic artistic inquiry. Wordsworth's ideas were influential to the "next generation" of Romantics like Keats and Shelley and resurgence of his own legacy by critics like Matthew Arnold have gone very far in seeing that Wordsworth's influence on modern criticism is profound. It is also through this where one sees that his influence has been ranked higher than that of Coleridge.