Sami girl,
Lots of opinions about Collars, some say yes, others no. I use the Nylon Slide Lock for both of my guys, mainly because of what we do, rather than how it looks.
I have a little different slant on raising a Dog than many others here. I really try to "let them be Dogs", and daily take them hunting along the Bayou, near the house. They jump in to the Water, catching and eating Frogs and Snakes, and the Nylon works best for us. I keep mine clipped fairly short, because of our activities, and everything drys out about the same time.
I have more than one set of Collars for them...
Their usual "wear" is a simple strap, with Bells on it. I have different sized bells on the Collars, where I can locate them quickly, and, hear which animal is where.
When we go out and about (Pet Store/Vet/Groomer) they wear their "full" collars, which have their Inoculation Tags and ID, including notification about their Microchips.
I
never use the Collars for attachment...
We always use Harness' when going anywhere. I have the retractable reels or standard 4' Nylon Leash's, depending on the activity. Using the Harness also is very handy to attach to the restraint for them when riding in the Truck, which I always insist being used when we're going somewhere.
Proper fit is the key to safely using a Collar (IMHO)
As stated, I keep mine clipped rather short, never attach a Leash to them and that allows the Collars to be adjusted where there isn't a lot of slack. This limits the possibility of them hanging their Collars on something, where they might be choked. Additionally, a thorough visual inspection of the environment, gives me additional confidence about that.
So, functionality and convenience is my approach.