I would appreciate your advice on the fair thing to do

Definitely split by six. Also food by six.

I said split by 4 this morning, but reading all these comments, I think I've changed my mind.
In my defence, (!!) , because I let a property with 6 bedrooms, I was thinking that servicing a bedroom and cleaning the bathroom took just as much work whether one person had used it or two, so the charge should be by room.As an aside, I sometimes used to listen to guests on arrival deciding who was to have which bedroom. It was quite funny!

I would split it by the 6 of you and treat everyone as an individual with regards to any payments incurred.
Have a wonderful time

@pascal30

Good idea on first dibs. A friend of me one goes to all trouble of organising a weekend away for herself and 3 other old school friends every year. She likes to do all the organising and they are happy to let her but is on the understanding she gets to pick her room first, and drinks are paid for on the first night.

Split by 6.

Slit by six and then have draws when you get there for rooms.. Or the person doing the most work organising and shopping gets first dibs..

Splitting by 6 seems fairest to me, ie price per head. If you split it by 4, that means the two singles are partly paying for 1 of each couple, which seems unfair.

Ha ha.
If you have to pay by room (like a hotel) - what happens if the sisters decide to share??

Split by 6.

I think it's mean to charge per room so the sisters pay double!

Split it by 6. There are six of you are there not?

I’m also in the split by 6 camp . But I’d suggest that the couple who booked the house get first dibs of the rooms rather than a drawing straws . As they’ve had to find and book the house .

Another vote for split by 6. I can’t see any justification for anything else.

Split it into six payers because six individuals will be sharing other facilities such as water supply ,drainage, sitting room, bathrooms ,storage, car parking and kitchen.

Six ways.

Fairer to split by 6

Yes, split by six! I'm a judge judy fan and that's what she would say! lol.

biglouis

I would say split by 6. However if the singles end up with considerably inferior rooms and the doubles have en suites (as often happens in hotels) then some other method would need to be found. Food should be split 6 ways.

The OP clarified all bedrooms are en suite. If by inferior you mean smaller, well, single folk shouldn’t need as much space as couples surely?

I m on the split 6 ways camp
6 people 6 payments only fair way …if you split it four ways the two single sisters as paying the same as the pairs and that’s very unfair
No brainier 6 people 6 payments

I would say split by 6. However if the singles end up with considerably inferior rooms and the doubles have en suites (as often happens in hotels) then some other method would need to be found. Food should be split 6 ways.

Divide by six, otherwise you are going to have endless recriminations such as those to do with restaurant bills.
You will all making use of the facilities provided in the cottage besides bedroom accommodation.

I think split 6 ways, but the single sisters should have the smallest bedrooms, as I doubt the bedrooms will all be the same size.

Difficult one I would say split 4 ways but food 6. Chat all together and see what everyone wants to do so everyone happy

Price per head. Fairer.

It’s a difficult one but having given it some thought I would advise that 6 adults share the cost.

We always split by the number of adults when we go on holiday with family members, so I’d say spilt 6 ways.