Messi and Ronaldo are widely considered to be the finest two players on the planet and it was the Real Madrid forward who triumphed over his Barcelona rival at this year's Ballon d'Or awards in January.
Messi missed out on extending his record wins to five when the Portugal international scooped the prize earlier this year, but Reds forward Suarez has claimed that he cannot separate the pair.
Instead the Uruguayan international, who scored 31 goals for the Reds last term to share the UEFA Golden Shoe with Ronaldo, preferred to highlight their differences in an interview with Helden Magazine.
"Messi and Ronaldo are totally different players," the Liverpool hitman told the Dutch publication.
"I can't say who's the better one of them. Messi has beautiful technique, scores a lot, is an excellent dribbler also because he's a little guy.
"Ronaldo, on the other hand, looks like a machine. It all looks so perfect with him. He combines power with intelligence and always strikes the ball perfect. They're both on the same level.
"But I also admire Andres Iniesta a lot. He's the kind of player that always thinks faster then every other player and sends incredible passes."
Suarez enjoyed a sensational season at Anfield last term, scoring 31 goals to equal the record number of strikes for a 38-game Premier League season, held jointly by Ronaldo and Alan Shearer.
The 27-year-old also scooped the PFA and LMA Player of the Season gongs, while cleaning up at his club's end-of-season awards ceremony.