Difficult to choose, easy to answer....I have 3 Glocks, with more than 10,000 rounds through each of them, all with zero malfunctions. Glock 19, 22, and 33. All pistols that a baboon couldn't jam if it tried.
My HK USP SK .40 cal has about 15,000 rounds through it, and has zero malfunctions.
I trust every one of these firearms with my life, and I don't think anyone would disagree with me when I say that, amongst others, you cannot go wrong by carrying these firearms.
You should never trust your life with something that "might" malfunction, because it will do just that when you need it most.