The Eagles are currently in 11th spot, but only three points behind sixth-placed Ipswich.
However, the five teams above that have been established in the top spots for the whole season and Warnock sees little chance of them being caught.
"The five clubs that are up there have pretty much broken clear," he told the official site. "They've got strong squads and they're more secure financially. So we all have to fight for the sixth position.
"Sixth place are Ipswich, who have spent almost £3million to get that position, so they should be favourites.
"But really you can't say anybody is favourites. There are eight teams vying for that one position and it makes it interesting.
"The difference between getting that spot and not could be anything. It could be a referee's decision or, as we've seen this year, you can play well and lose.
"It's a mixture of everything; you need a bit of luck, you need to play as well as you can and the big players have got to perform.
"I'm sure that the team that does that will get into the play-offs.
"Our lads felt a little bit sorry for ourselves but one good result like we've had can perk yourself up and you can see that in training.
"We've two home games and we have to get as many points on the board as we can."