From Consumer Reports (best Buys):
Best single 30″ gas oven Fridgidaire Gallery FGGF3032MW, cost $700
30″ smoothtop induction cooktop, Whirlpool GCI3061 xb, $1200
30″ Refrigerator (top freezer) Haier HT18TS77SP, $600
24″ Dishwasher Bosch ascenta SHX3AR7(5) UC $700
OK, you will have to subscribe to Consumer Reports to get their full low down, and it does cost money, $30/year but considering how much it saves you, this seems like a prudent investment….http://www.consumerreports.org/cro/index.htm
And yes, shopping at Sears with many Kenmore brands on that CR list seems like a good idea in addtion to you regular appliance stores.