I have owned one Sig, a P239 in 357 and 40, but also had a 9mm conversion barrel (it worked fine in my gun, YRMV). It was a great gun, kind of a modernized S&W 39 (stronger, more accurate, more powerful, better trigger). Nice gun. I have owned several CZ-75's; one original high polish short rail (rare) with the best trigger that I have experienced on ANY semi-auto, and two other Pre-B's, and a Retro. The Retro got tuned by a professional, with a hard sear. Trigger was so light it was almost dangerous, but the DA was still not as good as the early short rail gun. The CZ just came on as too heavy and large for an "optimum" carry gun. I like the design, but it's just a little "off". The Glock is workhorse. Perfect utility and reliable, and accurate. Simple. But it's boring. Not stylish. They all look the same. Can't speak for the Walther P88, but I hear it is a fantastic gun. Definitely in the "gun snob" category with the SIG P210. I do have the Walther P99, as does my daughter, and probably have it because it is "the" Bond gun. I think that it is righteously the Bond gun. It is ergonomically as good as anything out there; sleek, comfortable in the hand, points well, accurate & reliable. I thought that Walther might just have tried to cope with the Glock's success at first, but I think they went one better. I also have an undying love for the Browning Hi Power, and if confined to two 9mm's, the Browning HP and Walther P99 would suite me fine. All in all, depending on what fits you, or you just feel right about, ALL of the above guns mentioned are just fine, and one example of each just might outshoot another example of the other guns.