We travelled to Samoens in mid-March this year. It's well worth looking at a good piste map and also the ski bus routes to really understand the area before you make a decision. There are two main ways to get up the mountain quickly – from Samoens and from Morillon, which is only a few minutes down the road by ski bus. I’ll assume for this reply that you are focusing on Samoens.
The Samoens lift is pretty close to the centre of town – about 3 minutes by the free ski bus – and I think the closest accommodation to the lift would actually be in or very close to town. The ski buses run regularly at each end of the day, but pretty much stop in the middle of the day, which is a pain if you decide to stop skiing at lunchtime. There are no ski lockers at the bottom of the ski lift, but there is one about 20 metres from the top of the ski lift.
One alternative is to stay in the accommodation at the top of the main lift, but this was purpose built blocks, felt isolated from the town, and seemed nothing like staying in the valley. Samoens is a real French town, and we would always choose this over the accommodation at the top of the lift.
If I were going to Samoens again, which I happily would, I’d stay ‘low’ and base my accommodation decision on proximity to the ski bus routes. If you plan to have a car, nothing is more than a few minutes away and you could take your pick of anywhere in the Samoens/Morillon area.
Not sure what your group is like and whether you would be looking for lessons, but we’d highly recommend Zig Zag ski school.
Feel free to PM if you want to get into real detail.