Stainless steel to me is very year 2000... pre-bubble home trend, in the past.
Although I do still like stainless on certain things like sinks, hood etc... cleaning stainless steel appliance is still a pain.
I have a glass front stove, love cleaning it.
So if that next trend is glass front refrigerator & appliances... for the look, the function & how easy it is to clean it... is a trend I will gladly embrace.
My mom use to have a glass (clear, see through) commercial fridge... she loves that thing (function & maintenance-wise). Very very easy to clean.
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Black is always my fav. color for appliances... it ties in with stainless steel look (so great flexibility if one wants that resale value investment IMO)... if one haven't noticed how many stainless appliances also have black in it.
Stainless is also not really a color and if one think it like a mirror & hold any color to its surface... it will reflect & pick up that color... black its easy compatible cousin.
And Glass front, would be my pick for the ease to clean.