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This has been said many times before, but this is largely an issue of personal preference, assuming:

1. You buy a reputable gun (subjective, yes, but there are lots).
2. You maintain it properly.
3. You follow the manufacturer's instructions.
4. You break them in properly, if needed (small Kel-Tecs are a good example).

This is general stuff, certainly not all-inclusive. With that said, here's my inventory and their performance, which I realize isn't a high number of rounds fired:

S&W Sigma 40VE = 500 rounds, perfect
Beretta CX4 .40 (not a CC gun, but oh well) = 300 rounds, perfect
Beretta PX4 -F .40 = 300 rounds, perfect
S&W M&P 9c = 250 rounds, perfect
Kel-Tec P3AT = 500 rounds, one FTE on the first mag, perfect since
Llama Micromax .380 = perfect with roundball, jams anything else. It's a mini 1911 and darn fun to shoot, but accuracy sucks. 'Nuff said.