The Uruguayan scored his 25th goal and registered his 11th assist of the season against Southampton on Saturday, playing a key role in the Reds' 3-0 win.
"I've run out of words to describe him," Gerrard told reporters. "We're blessed in this country to have some really top forwards but for me, without being biased, he’s the best. I've said it many times, I look at Messi and Ronaldo and, yeah, they're world-class players but, outside of that, you have [Zlatan] Ibrahimovic and Luis Suarez, who are pushing those two really close.
The skipper added to the Liverpool Echo: "Luis showed once again that he's an absolute genius. People had been talking about him going five games without a goal but his contribution to the team has never wavered.
"He is very unselfish. At times he's been asked to play in a wider role and he has shown what a great team player he is. Even when he wasn't scoring, he was still terrorising defenders and creating goals for us. It was a great way for him to celebrate 100 league games for the club. His record is phenomenal."
The win at St. Mary's Stadium moved Brendan Rodgers's side up to second in the Premier League and Gerrard believes that its underdog status could well see it win the title.
"I think it's very nice people are talking about us and we're in the title race. There's no getting away from that, we're in it," he told the press. "But it's important we stay calm, keep taking it game by game and try to win as many games as we can.
"Manchester City and Chelsea are still the favorites because they have that experience of going to win it but I think both know, listening to Jose Mourinho and Manuel Pellegrini, that we’re a big threat because we've got no Europe and we can be fresh every game. Yes, it does suit us at the moment being underdogs. What suits us as well is we’ve a lot of time to prepare."