It's just a personal preference, just like all who prefer glocks over other things.
As i said in the post you quoted, I have nothing against any weapon i have never fired, but I have a HP 995Ts and the best match to that is a HP C9. In a pinch, a C9 can even use a 995 mag, though it's "not recommended by the manufacturer" to do it...
I know. I own a C9 along with 2 Glocks (27 & 21sf). Your statement just baffled me since I own both. There just isn't any comparison. The main drawback to a Glock is the brick like grip, but the c-9 isn't any better and is even arguably worse. Granted with the 21sf I installed a pachymer slip on grip to make it perfect for me. I used the same grip on the c-9, but it doesn't feel quite as good as the glock.
I've never sold a gun before, I'm only programed to buy. It's like having 9 kids. Yes some are better than others, but at the end of the day they are still your kids for better or worse (& no, I don't have 9 kids).