It is difficult to say definitively whether Virgil was a better poet than Catullus, as their styles and themes are quite different and both greatly influenced Latin poetry. Virgil is known for his epic poetry, particularly the Aeneid, which is considered one of the greatest works of Latin literature. His verse is often characterized by its grandeur and elegance, and he is known for his use of symbolism and allegory. Catullus, on the other hand, is famous for his shorter, lyrical poems, which often deal with themes of love, loss, and friendship. He is known for his use of wit, humor, and sarcasm, and many of his poems are considered to be masterpieces of Latin poetry.
Ultimately, it is a matter of personal preference which poet one considers to be "better." Both poets had a profound impact on Latin poetry and continue to be studied and admired today.