SLAVIC LANGUAGE VOTE
WHO THINK UKRAINIAN IS CLOSER TO. POLISH OR RUSSIAN!
It can be true! I am from Moscow and know that if you know Russian, you may speak and learn Ukrainian, Czech or Polish, but nevertheless these languages have many opposites)))
It's lexically a bit closer to Polish, phonetically a lot closer to Russian and grammatically almost congruent with Russian.
Almost in every aspect it's closer to Russian. Of course a Russian speaker would say that there are many "Polish influenced" words in Ukrainian, but still there are way many more words similar in Russian. And phonetically it's less similar to Polish which has all the nasal sounds. Grammatically it's also almost identical with Russian (with one exception I will mention below); especially in the Eastern Slavic way of (generally) not using "to be", unlike in the west and south Slavic languages.
I just know two very specific things in grammar and phonetics where it's more similar to Polish; 1. the existence of Vocative case (wołacz -Кличний відмінок); and 2. the existence of a "clean" "h" sound (which is absent in Russian, and in south Slavic languages, cause they have only the "x" sound)