I have two that I use the most, but have others as well.
Buddy Belt -
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I have been using this one the most lately. This is our harness typically when we are going to be out and about in public because it looks really nice! It's by far my favorite in terms of looks. Jackson does not seem to mind it so it seems comfortable enough. It's real easy to get on and I like that it's a belt-style, so if for some reason it needs to be tightened (if we added a shirt, or a jacket, or took OFF a shirt or jacket, etc), then it's easily done without any adjusting. I feel it's the most secure, so for being hooked into the car, it's nice and I feel it's safe. I would trust it to be able to pick up even 16lb Jackson easily if I had to swing him up in the air to get him out of trouble. It's a really nice leather but not real heavyweight. I guess my only cons would be - I don't want to really get it dirty, so if he's going to be near water, or sand, or lots of mud, it won't be my choice as I don't want to mess it up since it's so nice. But I did get a leather protector on it when I purchased it. So we use this for our regular walks, and walking around downtown, or visiting local stores and pet shops, etc.
Puppia Original Harness -
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is our other "go-to" harness. I find it super easy to put on and off, as Jackson does not really mind it going over his head. I think it looks adorable, always get compliments on it. Oh, and love all the colors. We've had black, red and camo, but the camo one got thrown away by accident, and the red has been lost for a while

LOL... The mesh is "breathable" so it doesn't seem too terribly hot. I don't care if it gets dirty, because it's really easy to throw it in the wash. It does seem to stretch out over time. But it's still in good shape and we've put it through the wringer, as it's been through rain, snow, dirt, sand, etc, etc. I also don't mind leaving this harness on him ALL day if need be, as it seems super comfy and almost just like wearing a shirt or a little vest.
We also have just a regular ole' nylon step-in harness from Petsmart... we use this as our "cheap" harness, so when we are going through the woods and farm fields exploring, I usually put this one on him as I don't give a crap how dirty and nasty it gets. It's just so that he can drag his leash behind him and run around and if need be, I can step on the leash to stop him.
Oh, and we do have the ChokeFree leather harness -
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got this one before the Buddy Belt and was happy with it but since we've gotten the BB, I haven't used it really at all. I did not find the velcro to be a problem as the d-ring comes through, so there's really no way for the velcro to come loose. But yeah it's not extremely adjustable which kind of sucks and why I've preferred my BB over it. I will say it's a lighter leather and seems a bit more comfy than the BB.