I agree, over the years the gap between petrol and diesel has narrowed, more so if you have petrol turbo like many do now.
I think diesel still has a slight advantaged in the MPG area even taking into account the MPG you lose with the modern filter systems they have now to clean them up.
Although I had to change back to diesel in my current car I prefer petrol as those engine seem to be more refined and quieter and my diesel only sounds quite because of all the soundproofing padding it has and the weight of that adds to a slight cut in MPG.
I’m more or less sure my next car will be petrol (electric is just a dream I had once ?) because I do 80% short journeys and although I have had no problems with my 3 Motability diesel cars with the Diesel Particulate Filter it’s still a little niggle in the back of my mind and as my KIA manual says I shouldn’t used the car for journeys less than 5 miles, like a lot are, I could be on thin ice as far as the warrantee goes should it have a DPF problem.