Keeping your workbench tidy and maintained is a snap, regardless of which table top you choose.
Metal: A clean, wet cloth and some stainless steel cleaning spray will do nicely.
Wood: It is recommended you treat the wood with a water-blocking agent like Thompson's water seal. This will allow liquids to bead and not be absorbed by the wood. Use a dry towel with liquids, and a hand brush for other debris like wood chips or sawdust.
Laminate: A clean, wet cloth and an anti-bacterial multi-purpose cleaner spray works well.