Many serious chili competitors use a Tri-tip roast for the meat. Both your recipes call for meat cut into 1" cubes. I think that's too big, I like 1/2" cubes. I add a little Mexican chocolate near the end which I think helps to smooth out any bitterness from chili powders or dried chiles. A little lime juice before serving brightens the flavor.
If you use whole dried chiles, after you open, seed, and devein them, toast them by holding flat on a griddle or non-stick pan for 15 to 20 seconds per side before soaking them. This also helps to remove the bitterness. After soaking, puree, then run them through a chinois or food mill to remove the skins. Extra work, but improves the smoothness of the flavor.
Good chili is defined by the smoothness of the broth, IMHO.
Kevin
I like muskies.