I can vouch for Ski Famille, we went to Les Gets last 2 winters. The nannies are there 8.30 throuugh 4.30 and will take the kids off to ski school and pick them up again, give them lunch etc. then do activities in the afternoon if they want, or you can meet up with the kids and go skiing with them. Last winter just gone I credit them with me and the mrs getting 4 EPIC powder days in the PdS while they looked after our kids. Ready to get out riding at 9am with the kids already fed and off your hands? I wasn’t expecting that. Way more riding than I thought I’d get on a 1st and 2nd family snow holiday. They are better suited for younger families though so this year we’re going self catered.
English ski school a must too – 360 was good but value for money seemed a bit lacking in the early days – didn’t seem to be a lot of actual skiing going on – but they can both ski now so I guess their methods are valid.