For several years I was an active participate in chili cook-offs. During that period we always had a smart ass wanting HOT chili, once I was accused of making chili for the old maids. To remedy this, I bought some Bhut Jolokia (Ghost Peppers) wile in New Mexico; I let some dry, saved the seeds and planted them for years. I also planted Chili Tepins (small peppers about the size of a peanut, I think they originally come from Thailand.) Both are very hot, just the ticket to shut up a wise guy, I have sent some of the best looking for something to cool them off.
I like a mild chili that has just a hint of a bite so I don’t use the hot stuff anymore but still have the chili tepins growing wild in my garden. As for sauce, I do use Tabasco and Louisiana hot sauce for some dishes, I love it on eggs and hash browns.
According to the experts at the U. of New Mexico, the Bhut Jolokia is the hottest pepper available with chili tepin not far behind, either one will make the habanero seem like ice cream.