Yah, I would say so.
Spanish has the simplest pronunciation rules and is an entirely phonetic language. So you have an easy time guessing how words are written and figuring out the correct pronunciation.
Italian is also phonetic, but the pronunciation is a bit more confusing b/c there are consonant clusters that are counter-intuitive, some consonants that change sound based on which vowels follow, and a few other pronunciation quirks. But once you learn all those rules, I think pronunciation is fairly straightforward.
The big difference is in listening. I still struggle with Spanish from time to time b/c most native speakers are speaking at breakneck speed. There is also huge variation in accents based on country or even sometimes regions within a country.
Italian has a slower rhythm and more natural pauses. When spoken by a native, I believe the speed of Spanish is about 7.8 syllables per second compared to 7 for Italian, or about 11.4% faster with Spanish.
Incidentally, I believe Japanese is the only language faster than Spanish, but I don’t have much experience with that. I would’ve liked to learn Japanese, but I was put off by the different alphabets. If it had an alphabet as easy as Korean’s hangul, I probably would’ve stuck with it b/c I enjoy Japanese culture so much.
Anyway, back to the original point. I’m not that far into learning Italian yet, so I’ll wait to give a more definitive answer, but my gut feeling is that the difference in listening between Italian and Spanish would make Italian the easiest of the romance languages to learn. Unfortunately, Italian is not really all that useful unless you’re planning to live in Italy, but Spanish is pretty important and unlocks a ton of different countries to visit.
One other note is that Portuguese and French have nasal vowels, which are annoying for learners whose languages don’t have those, whereas IT/SP do not. I think those add quite a bit of difficulty, and French is a whole different ballgame from the other 3 in terms of writing, pronunciation, listening, etc.