I find that chili, like many good soups and stews relies heavily on personal preference regarding spice, seasoning, textures, and abundance of ingredients; customize however you think is best!
I like chili with only a small amount of beans, hence the 1 to 2 cans notation.
You can save effort on seasoning by adding a chili seasoning packet. For this I actually have found that substituting a fajita seasoning packet works wonderfully.
Halve the scallops and shrimp if desired for more even distribution.