Chamonix vs Clusaz for travelling with toddler

Hi there!
Anyone have experience travelling with a young one (< 3 years) to either Chamonix or Clusaz?
We are looking for a good mix of accessibility (no car required, minimal transport required) to easy walks in the snow, cross-country trails, as well as sufficient "rainy day" / "non-skiing" activities for an infant. We would also prefer more of a traditional/charming village feel than a big town which I know Chamonix is, but obviously this preference conflicts with the other needs, so wonder if anyone has experience of both! I should mention that neither of us does alpine skiing, so we would only plan to do cross-country skiing while the little one is in a creche. Also open to any other suggestions that are within approximately 1-1.5 hours from Geneva airport by shuttle/public transport!

Thanks,
David

La Clusaz would work, although I've no experience of the creche(s) there.

It's a compact village but make sure you stay central (or on the ski bus route) as some of the accommodation is a bit of a walk into the centre.

From the centre you can ride the gondola up to Beauregard at the top of which is a plateau with walks (snow shoes may be required, depending). Hopping on the bus you can get to La Balme and ride another gondola up to a restaurant with great views (no easy walks in winter though).

I'm pretty sure the bus is free, but you will need a pedestrian ticket for the gondolas.

The bus will also get you to Confins, where there's a lake (likely frozen), some nice walks and also cross-country trails, and a good restaurant.

There are similar options in Chamonix but, at least when I was last there, the buses between areas can get busy.

St.Gervais might be an option, if there's a creche, as you can jump on the cog railway up to the glacier - which might be fun for junior - and I think there are cross-country trails from the village. Not been there for many years though, so I may be wrong!