Buying used...should I get 80 series or 90 series?

Kenmore washer. Last washer was an 80 series and loved it. I have found the 80 and 90 series, both in the same used appliance store. They have the same features except the 80 is a 2 speed and the 90 is a 3 speed which I don't think matters much. Is one better than the other?