The Crystal Palace manager hopes his side can reach the top flight at the expense of the Hornets, after criticising the policy they used to loan players from across the continent
Palace beat Brighton over two legs to reach the match billed as the most expensive in English football, while Watford overcame Leicester City with a late goal at Vicarage Road.
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"We've both ended up at Wembley; one of us will be delighted, the other will have to start absolutely all over again."
Holloway led Blackpool to the Premier League during his time in charge of the Seasiders but was unable to keep them safe from relegation.
And, criticising the "interim" role handed to Rafael Benitez at Chelsea, the Palace boss believes that his own job would not be safe even if the Eagles were promoted.
"Football defies logic, doesn't it?" he continued. "You give a manager a job and then you sack him 57 days into it, you have to pay him three years' money.
"The game has never been as crazy as it is. How can you have an interim manager who wins the Europa League and then he's gone? Whatever job you have, you must commit to it and give it your best and normally be given some sort of time."