I have a feeling that pumpkin pie and sweet potato pie tastes run regionally, being that more Northerners grow pumpkins and Southerners grow sweet potatoes, but I could be wrong. Having had a mother with Southern roots, we loved sweet potatoes any which way at our house, including cold for our packed school lunch. My Northern side of the family only made pumpkin pies. (It just wasn't natural to make sweet potatoes into pie)Personally, I'd take either one if you'd like to serve it up to me. Plenty of whipped cream, though!