In the name of all that's holy, if you're going to stoop to using canned pie filling, don't do pumpkin. Good pumpkin pie is fucking full of spices, brown sugar, molasses, all sorts of good stuff. Canned filling, the cheap store-bought ones, they're complete trash, nothing but HFCS and pumpkin flavor powder or some shit. Even good store-bought ones are way too goddamn mild.
Here's what you do:
1. Get yourself easy but decent-quality store-bought crusts unless you're really dedicated and decently experienced (homemade crust is great but a total pain in the ass).
2. Buy canned pumpkin puree. Puree, not filling. Puree is nothing but cooked and smoothed pumpkin; filling is preflavored garbage. Like the crust you can make your own, but it's a total pain in the ass.
3. Find yourself a good recipe. Should be one that uses brown sugar, molasses, and all the key spices--a typical mix is nutmeg, cloves, ginger, and cinnamon.
4. Whatever the spice measurements are, double them. 95% of pumpkin pie recipes are way, way too mild, to the point that you can barely taste anything but a bit of sweetness.
That's the old family tradition here, and it makes a goddamn delicious pumpkin pie. Not sharing the specific recipe 'cause sekret, but the procedure is good. A pumpkin pie made with white sugar, with a light hand on the spices, with store-bought filling, it's going to be shit and you'd be better off making anything else. A proper pumpkin pie will beat out just about anything else if you enjoy a sharp, complex flavor mix layered over sweetness instead of pure cloying sweetness.