We've got the money and had the time to do these things. We've been to Disneyland Paris - but in the spring. I wouldn't contemplate it at Christmas. I can't think of anything worse than squeezing onto rides with thick jackets etc on. We've also been to Disneyworld Florida. But, again, I wouldn't do it at Christmas - it's busy enough in the spring/summer months!
We did the London Winter Wonderland thing when DS was about 8 years old. For me it was like walking around a car park with stalls on it. Waste of time and money. But others love it. I don't so I stay away. DH and DS felt the same so we've never been back. We have done some lovely local markets and have been to Germany for the Christmas markets and that was magical - about two weeks before Christmas. DS was about 7 then.
Never done Lapland. My DSis has and it seems a lot of hard work. DS had never expressed a want to go there. If he had, we'd have probably gone.
We've done Centreparcs which was fine. We prefer a nice cottage with laundry facilities which Centreparcs didn't have, apart from a launderette type place, when we went. But not at Christmas nor a couple of weeks before (DS is in his final year at school now but there was no way we'd take him out before the holidays just to experience a cottage). We did have family elsewhere in the country so we would rent a cottage near them for a few days after Christmas so I guess that counts. We wouldn't have done it just to get a cottage experience though - this was seeing family.
Days out. Yep, lots of them. We'd go to a forest walk with lights and music in the week before Christmas, Santa's grottos when DS was young, a castle for the evening with stalls, lights, Santa etc. Definitely did all of those and still do the castle or forest thing. In fact, during Covid, the castle just put lots of Christmas trees in their grounds and we really appreciated them at a time when everything was shut. Changed our priorities to be honest.