I was surprised how similar the two were, comparing the macros. That said - they're both probably fine. Sunflower seeds appear to cost much less by volume, compared to almonds, though. Blue Diamond has one of my favorites - Dark Chocolate oven roasted almonds. For sunflower seeds, I prefer roasted and salted, as they're tastier and less oily.
Nonetheless, I like almonds, sunflower seeds, pistachios, peanuts, and pumpkin seeds. Currently, I have been eating pumpkin seeds the most as I like the macro profile better. A 1/2 cup provides 30g fat, 20g pro, and 10g carb.
Slightly deviating: I was recently introduced to an awesome bag of pistachios. Check out "Everybody's Nuts California Pistachios Salt and Pepper". I've never seen them in my local stores, so I placed a large order yesterday.