Depending on functionality, how your island is used, it can be somewhere to showcase a different material, as in a traditional kitchen with a substantial timber top, or if it's a practical prep area, the durability and maintenance is of utmost importance. If it is a highly utilized work area the surface would be best suited to reconstituted stones, which are man made such as Caesarstone, essastone, quarel la etc, as natural stones such as granites and marbles are more porous and require some maintenance and care. Depending on form and style, your options are almost endless. Cntemporary spaces can indulge in stainless steel tops, acrylic solid surface tops that can be any thickness, profile and can actually be repaired without joints. Glass or concrete are more options. So you ask for help on choosing your island bench top, That is dependent on a great many things. Factor in how you would use is surface, and what you can afford, then think about the overall impact these options can provide on the entire space. Eliminate. And collect samples to make your decision. It will probably become the single most used space in the house.

You are so right white is never out of fashion. I would set your budget and then look at your options. If you plan to stay in the house for many years then spend to the top of your budget (if that is going to give you a life time of pleasure), if you plan on being at the home for only a short time / few years then I would go mid range so it looks lovely, will have good resale value but you can invest your well earned money to go towards something else as well. Obviously Marble / Granite is the top of the range but there are so many cheaper and very attractive options these days that look just as good.

too slippery?

Can anyone recommend a product to use on cleaning the units?