I think it depends a bit on the type of house you have.
We've been looking for a period, probably Victorian, house. As we really like remodelling houses and want one with lots of period features, we've been really hoping for one that's had very little done to it/is badly presented etc because then it'll be a blank canvas for us to change, unappealing to more people, and more affordable.
But I think if you are trying to sell a more modern family home, which people tend to buy because they are practical, don't need rennovation etc, or you've already done work to the house which you need/want to recoup the cost for, then it needs to be presented as well as possible.
I'd defo recommend the storage option. There's an amazing amount you can get rid off - summer clothes, sports kit, outgrown toys, lots of books and things on shelves (more open space on walls makes rooms look bigger), very personal cluttery stuff like kids' modelling or judo trophies etc, seldom used appliances that take up room on your kitchen work surfaces like blenders or bread makers, everything you have stuffed under beds/on top of wardrobes etc because you can't possible be using all that very often anyway.
Then when you move you'll realise you didn't need half of it anyway and you can keep your new place more clutter free (for a while, anyhow...!)!