The 44-year-old has been praised for his good work since taking charge of the Blaugrana at the start of the season, but he has made it clear that his former boss remains on another level for now.
"I haven’t won anything. On a general level I would lose in any comparison with Guardiola," Vilanova stated at a press conference.
The Barcelona coach then went on to stress that he is not aiming to better Guardiola's record as he feels he played a big part in the club's successes in recent years, too.
"I feel very much part of what was done before and therefore I’m competing against myself," he continued.
"The 5-0 win over Madrid and the Champions League final in London are the highlights of my time with Pep."
Vilanova also had his say on Guardiola's future, and believes that his former boss will do well wherever he goes.
"It’s great news that Pep is eager and ready to return. Football needs the best trainer to coach again. I’m sure it will go very well for him wherever he goes."
Guardiola has attracted the interest of clubs such as Bayern Munich, Arsenal, Chelsea and both Manchester sides.