The Essex boy admitted he is enjoying the talent this year, but he is not happy about some of the acts turning on their mentors.
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Speaking to the Metro, Olly said: "I don't know why you would. At the end of the day, the mentor can only do so much. When you go out on a Saturday night you've got to give it 110 per cent and really enjoy it.
"I would never have spoken out of line about Simon [Cowell] or any of the other judges because I always felt that it was in my hands to give it everything."
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While he was on the show, 30-year-old Olly was mentored by Simon, 55, and he said never questioned the music mogul's decisions.
He continued: "Simon and I had a great relationship, we spoke about songs, we chatted about what we thought was right or wrong, and what would portray me as the artist I am and he was very honest with me. You've got to trust your mentor."
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Jack Walton, 19, who got the boot from the show last weekend, recently slammed his own mentor Mel B, 39, admitting that he definitely didn't trust her.
Olly said: "[Jack] came on the show as a no-one and now he's known. Mel B has been in the industry for a long time and from what I see from watching the show is how close she is to her contestants and gets so involved with all of it."
On who he thinks can go all the way, Olly – who releases new single Wrapped Up on November 16 – said Andrea Faustini and Lauren Platt have potential, but his favourite right now is Ben Haenow.