Consider following when choosing a wash basin:
Always select the basin before the tap fittings. This is because some taps won't fit on certain basins.
If you’re going to have a set of concealed mixers and wall-hung w.c's, make sure the surface your fixing to is structuraly stable before you start to fix. One way to get round this is to build a false wall.
Basins containing glass in their design are easily chipped and repairs are expensive. Make sure you choose a robust design if you are concerned. Also when selecting a glass basins, check that the glass is tempered.
Ceramic is a lot easier to maintain compared to either glass or stainless steel.
Check if they have tap holes. Some don't dependant on the design.
Handcrafted basins are popular with some people as they can be tailor made in any shape or size to fit into any space, being coloured to match your unique decors.
Most wall-mounted basins are cheap and easy to install and ideal for tight spaces.