My EDC is a Gen 3 G23. I can conceal it well: just a cheap, simple Blackhawk IWB like this
or, if I am choosing to deep conceal, I use this:
However, I usually OC and only use the two above if I am doing something that demands I conceal.
In regards to handguns, I also owned the following before they were all lost in a very unfortunate boating accident: a NA Arms .22mag with the beltclip holster, a Heritage .22/ .22 mag that I used for squirrel hunting, a p64 in 9mm (Mak), a Nagant 1895 (7.62×38mmR), and a Ruger Redhawk in .44mag with a 7" Barrel. I would sometimes OC the .44mag when I was going shooting sometime during the day and sometimes the p64 when I wanted to "blend in". I almost always had my NA arms revolver on me and it was my "close-up and personal" bug, but I oc'd that too to avoid having to inform if I was OC. But, since the accident...
When I was going to buy my first CC handgun, I went with the Glock 23 listed above. I love it. IF people have a problem but it works for you, then who cares? One of my most embarrassing new OC moments was having the Glock in an OWB holster without any retention get knocked out of the holster when I was up on my roof doing some repairs. The pistol slid down the roof, fell a few feet to the lower section of roof, dropped off that ledge, hit my ladder, hit my deck, and tumbled down on to rocky ground. No discharge, no damage besides the edge of the rear sight had a small gash. I thought about taking it out but have decided to leave it there as a memento of my foolishness. I think Glocks are as safe as anything else I would carry, as I would never use a manual safety anyway. Keep your finger off the trigger and it should not be a problem. (Regarding reloaded ammo in a Glock, that is another issue with which I don't wish to derail this thread. Google it if you need more information)
* I did add reinforcement to my Smartcarry holster in the area near the trigger guard; when wearing the holster and re-holstering I noticed that the fabric could conceivably enter the trigger guard; I have enough children already but a shot "there" would NOT be enjoyable at all. But, as I said, any pistol would be a concern because I would never use the external safety anyway.