I used to love OPI Hollywood Blonde as it didn't chip on holiday and went all sparkly in the pool/sun.
Generally I wear strong blues, bright greens or a sparkly red but I really need something which wont be glaringly obvious if it chips and wont be a nightmare to redo if necessary while away.
OPI is my favourite brand but am happy to make a new tough polish discovery (a little "meh" about OPIs current colours!)