I don't like limited slip or quick release buckles; my dogs generally just live in nylon collars with plastic buckles (the horror!). I haven't (yet) found leather collars I like on them, because they are always too bulky and heavy.
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Someone makes a plastic buckle that isn't a quick release? I've never seen such a thing. Not that I'd put one on my dogs, anyway.
I have one collar with a quick release plastic buckle for Pirate, but I use that mainly when I'm planning to have him off-leash, I don't entirely trust it. Though it's a fairly wide collar, and large buckle, so maybe it would stand up. Most of my collars are either metal buckle, or limited slip. I prefer brass hardware, with their coloring, though I have silver too. Fastening an actual buckle with Pirate can be a PITA, he doesn't hold still very well for it, so his most recent collar is a limited slip, and I'll probably stay with those for him.
I like their collars from 1 1/4" to 1 1/2". Mostly buy fabric wrapped collars these days, for the decorative fun. They don't actually wear collars all that much. I have one plain nylon collar, embroidered with Tess' name & my phone number.
I bought that for a trip (from The Collar Shop, she gave me a discount price as she'd just got the embroidery machine and did it for practice). It's a little fancier than the nylon ID collars I found when I looked, it's 1 1/2" wide, and has the classy looking buckle. I actually really like it, and it's one I use for off-leash play when I think the collar might get dirty.
We have the good AE leather collars, the one Tess is wearing is a daily collar (1 1/4"), the chain martingale that Pi is wearing is mostly a show collar. Both were originally bought for Tess, but will be used as long as I have the breed. They mostly only wear these on dressy occasions.
And their newest fabric wrapped collars, 1 1/2", brass buckle with badgers for Tess, limited slip with sharks for Pirate:
We have a couple more of those. Because they're fun, I tend to use those for just bopping around.