Hardest ages for boys v girls?

[Pantheon]

Interested if you have one or more of each whether you have found they go through difficult stages at different times? So far I've found my ds much harder work as a toddler and wondering if things will level out later on? Hopefully?!
Obviously all kids are different. Just wondered about in general.

Not really ds1 was very hard till 18 months then a breeze, now an adult still no issues.
Ds2 was hard for first 6 months, now nearly an adult and is very pleasant, hard working but frustratingly layed back. In between had pockets of being easier to parent than other times (definitely the one to try it on/push boundaries).
Dd was the easiest baby I was worried there was something wrong.
I'd say mine have been harder to parent at different times due to life events (nd and significant medical health needs) and when health needs clash with hormones this can be difficult.
Also multiple births ds2 and dd are twins somethings were easier, somethings were harder (9 months till 2 years was physically hard) but that was more to do with how I was coping rather than their behaviour. Parental sleep deprivation and illness have had effects on dc at times. But different external factors will have had negative/positive effects on them at different times.
I also think transition times can cause issues eg starting nursery, primary or secondary school (but this is also dependant on personality ds1 struggled with this, ds2 sailed through the transitions). Also how parents deal with the transitions can have an affect (dc friends who struggled tended to have parents who were struggling with these changes not always but it was evident).
So I think theres too many variables- parent and child personality add into this outside influence/ predictable and unpredictable life events and there could be any number of outcomes.
Parenting changes it gets physically easier but mentally more challenging as they get older. It doesn't even stop when they leave home it just changes.

Not from experience myself, but I have heard that boys can be harder as toddlers / young children, and girls can be harder as older children / teens.
My mum said that was mostly true for me and my siblings. She said with girls there’s a lot of friendship politics that play a roll that she didn’t experience with my brothers. But every child is different and will have their own unique challenges too I guess.

I have two boys and a girl, and I would say that one of them (DS2) has always been a bit harder than the others, at all stages. They're now aged between 16 and 20. So more of a personality thing than a boy/girl thing.