This is from a personal perspective. Your mileage may vary.
Kimber - the original guns were excellent. Alas, their QC has slipped and other companies offer a better value.
HK - with the exception of the P7, P9 and HK-4 pistols, they are expensive, bulky and awkward to operate.
AMT - The AMT company made the Auto-Mag, the AMT Backup, a .30 Carbine autopistol and other guns that never quite worked right all the time. And you had the privilege of paying thru the nose for them.
Para Ordinance - While I like some of their products, it seems their QA has suffered and I've seen several LDA pistols that failed on the range, one with as few as 20 rounds through it.
Thompson/Auto-Ordinance - now owned by Kahr, that merger didn't help their reliability (or lack thereof).
Very close to what I'll call the 2nd tier "also-rans" on my list is
the CZ-75B pistols (the P-01 is okay). The problem is that the safety lever on the CZ, to my thinking, is either too far forward on the frame OR it operates bass-ackwards. By that I mean the safety pivots at the rear, close to the thumb. You have to reach past the pivot point to operate the safety. I have average sized hands and that safety is always just about 1/8" out of reach unless I rotate my hand on the gun (not what I need during a draw!) If the pivot point was at the
front of the safety lever and it extended back towards the rear of the pistol, then it would work far better. Otherwise I think the CZ pistols are excellent and very competitive on price.
Now... excuse me whilst I don my flameproof suit.
[shuffle-shuffle] <ziiiip> Okay.
Sig-Sauer Pistols
Hey, no fair throwing knives!
Really, for the price of Sigs, I would expect a grip shape that is
marginally close to being comfortable in the hand with a trigger that's at least condusive to a DA pull. Most Sigs have the grip ergonomics of a 2x4 sans the splinters. Combine that with a trigger shape that feels bizzare in DA mode, I have to put the Sigs in the 2nd class category
for me. They
are very well made and expensive, but I can't use them so they're worthless to me.
Sig Lovers - flames in private, please. Just keep in mind it's an
opinion.