In scoring terms, Suarez went two clear of Manchester United's Robin van Persie and five clear of Gareth Bale, who visits Anfield on Sunday with Tottenham, with a hat-trick against Wigan last weekend.
His tally of 21 made him only the third Reds player to break the 20 league goals in a season barrier after Robbie Fowler and Fernando Torres.
However, with United and Spurs currently in Champions League qualification spots Enrique thinks that may help their respective players while Liverpool are playing catch-up in seventh.
"Judging the award is really difficult because a lot of the time it depends on where a team is in the league and Tottenham and Manchester United are both in better positions than us," said the Spaniard.
"Van Persie and Bale are on fire. Van Persie has been a very important player for Manchester United this season and Bale is doing very well - in the last few games, Spurs have won because of Bale's goals.
"It will be difficult for him but, of course, I think he deserves it.
"But Luis is my friend, so I would like him to win the Player of the Year award."