We are restoring a 1901 foursquare and just got through doing the kitchen. We ended up buying a dual fuel but looked hard at electrics. I liked the Whirlpools and would have bought one before we found the one we settled on. They got good reviews, were well made and I like their design. Stoves come in different widths, make sure you buy one that will fit – standard ones are 36 inches, we had to fill a 40 in space so our options were automatically limited.
First advice: buy whatever the cook wants. You know the drill – if mamas not happy….
Glass/flat top are fussy, in opinion, as to what cleaners they will take, if you are forgetful you can crud up your top pretty quickly (like my sister-in-law did), They are also prone to scratching and require pots in good shape. If your favorite pot has a slight warp in it base, it will rock on the stove. However, they are easier to keep clean and look pretty cool.
The better stoves will have windows in the oven doors – if you bake/roast a lot a large window is a good thing. Really most major brand name stoves today are pretty decent, we kept cruising Sears/Lowes/Home Depot until we found one with our needs on clearance and got a good deal. Do ask her what configuration of knobs she wants. Some cooks hate having controls in the back of the stove, some love it. Some want a timer and fancy lights, some don’t care. Do try to match the color of her other appliances.
Again, a lot of it is personal taste – Keep mama happy!