The two conventional schools of thought are...

  

JUST ABOVE - Price your home just above your target sales price (market value) as a buyer might try to negotiate with you on price.

JUST BELOW - Price your home just below your target sales price (market value) as this is likely to generate more offers and increase the possibility of a faster sale.

I'll mention to caveats before choosing an overall winner here...

[1]  Other market metrics matter.  We need to keep in mind how much competition your home will have on the market, how many buyers are routinely buying in your price range or location, etc.  Pricing your home is not a one dimensional evaluation of a potential market value and translating that into the best list price.

[2]  All of what I have written thus far (just above, just below, etc.) is built on the foundation of some objective truth of market value.  It's not always (not usually so simple) to pin a specific number on the market value of your home and thus to be able to price it just above or just below that number.  If we analyze your home and conclude that it has a market value of $440K and we talk about pricing it just above or below that, but the market value is actually $425K then our just above and just below numbers won't be that helpful or accurate.

But, those caveats aside, sellers are almost always best served to price their home just below the target sales price / market value.

As stated above, pricing your home just below market value is likely to generate the most interest from prospective buyers and potentially generate the most offers on your house.