The Tigers meet Arsenal in the cup decider at Wembley on May 17 but Bruce is still trying to decide on who will step out for kick-off after giving some players much-needed minutes in Tuesday night's 3-1 Premier League loss to Manchester United.
"It was a good work-out for us. A lot of people needed a game and it has given me something to think about with obviously the cup final in the next 10 days or so," he told Sky Sports.
"It's a wonderful thing to have in the armoury at the moment. I can only pick XI of course and I'm going to disappoint a few, of course I am, but that's the nature of football.
"There are a lot of them that deserve to play but I can only pick XI."
Hull, who sit 15th on the league table, take on Everton in their final league fixture on Sunday before tackling the Gunners at English football's headquarters next Saturday.
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