I've gotten at least 20 hattricks so far, in ICC 2009, in different teams. I've played over 150 seasons with about 15 different teams though. So I've had a lot of opportunities.
My best hattrick was definitely the one I got online with one of my teams. A youth player from 2021, who had shown potential after a good debut with my team, I selected him for a county match against someone that I thought would smash me (undefeated after about 10 matches of t20, 3 county wins too). I brought him in soon after my openers being tonked for about 150 in the first session, and my spinners not doing well. It was the last over before 'drinks' so I thought it was worth a shot. He was a SLA, allrounder. He then bowled/caught & bowled 2 county players, and my opponent's international player, Philip Hughes, who I know is a worry to any team for endorsing the game, was bowled.
The game, however, I lost....they managed to recover, and I didn't have a very strong batting team at that time.
So, now that i've wasted your time with a pretty boring story, have a good day =D