Ravel admired Liszt a great deal. Ravel hated for example Beethoven who he called the Big Deaf One. But he had a great admiration for Liszt's flashier Hungarian style moments. And some of this may have translated into Ravel's famous work for violin and piano, Tzigane. Hi Benjamin, Fred 'ere from Miami.
Comparisons are very difficult.
And I think they are usually unsatisfying. But I found that in general people rate Ravel very highly, either just under Debussy in achievement in music in France this century, or sometimes even along Debussy. Although people who love Ravel that much are rare. Poulenc is more of a personal taste that people have or do not have. But even though Poulenc wrote many wonderful works of music, he never wrote anything quite as famous as Bolero.