agree with above poster. Heavy duty full-tang forged knives are the best. Lots of choices in blade materials and handle designs/materials. Test-driving a knife is important so that you can choose one that fits your hand well and feels comfortable to use. (similar to cameras in that regard, eh?).
I have a set of Wusthof Classics that I bought 20 years ago that still perform fine, with occasional touch-ups on a diamond stone.