However, United boss Jose Mourinho lambasted his players for basking in the glory of coming from 2-0 down to beat City 3-2 last weekend. They can surpass Chelsea's Premier League record of 30 (2016-17) by winning three of their remaining five fixtures.
"They still smell a chance.it's a big challenge because in football they know anything is possible until mathematically it is impossible", he said.
"With my experience you don't titles with inconsistency. They won the title because they were the best team". Probably because I won eight championships, I was not in the moon with the victory against them.
"The Premier League is so, so tough", Guardiola said.
Guardiola has won the League Cup already for City this season but a first Premier League title, to go with the three La Liga titles he won as manager of Barcelona and the three Bundesliga titles he delivered for Bayern Munich, will be particularly satisfying for the Spaniard.More news: Bruce McArthur expected to be charged with seventh murder today
"That doesn't make me feel super happy and in my opinion affected for sure some of the people that was too happy".
"I think United will win. I don't expect him to score two goals every week, either, but I would like him to be consistent to a certain level".
United have scored a full 30 goals fewer than City this season and Mourinho has not managed to get his side to click, despite being able to bring on further talent such as Marcus Rashford, Jesse Lingard and Anthony Martial.
The hosts should have had a penalty and Romelu Lukaku's header required a brilliant save from Ben Foster, but they hardly stretched West Brom's back four.
In what was a largely subdued affair, the West Brom striker showed great willingness and popped up to grab the winning goal.
On the evidence of Moore's first two games as caretaker boss, West Brom fans may wish he had taken over from Pardew at an earlier stage of the season, before relegation became nearly inevitable. Chris Brunt hit a corner kick in the 73rd minute against the Red Devils to set up the play. I suppose my team-mates will roll their eyes a little bit but I kind of want to see what the reaction is now. 'We were masters in complication.