If you're going to keep the cabinets as is, then go with stainless. Not a fan of the white/wood combo.

Depending on any future remodeling, I might opt for whatever is cheapest that fits the space vs upgrading. If I plan to remodel in a year or two, maybe upgrade as long as I can also use them after remodeling the kitchen.

Have you considered black? I have natural cherry cabinets and black appliances. You could accessorize with black accents to tie it all together....black knobs, lighting, ironwork, etc.

i like stainless because every model comes in that choice. and it works with wood, or with white cabinets. in any case, you can transition, no need to go out and replace them all at once. 2 finishes will look fine in the interim, as long as one of them is stainless.