Of the retractables, Flexis are the best. I like the ribbon ones better than the cord ones.

Pros: Sturdy and comfortable

Cons: None

This is a nice leash. We use it with oreo when we take him for a walk. The only thing is you still need to be careful, 16 feet to run ahead is a little too much if there might be cars around.

Pros: Gives dog a little extra room to run

Cons: Becareful of cars

I really don't like these leashes as I have seen them break quit easily. They are also bad if walking in a public area and the person at the end of the leash doesn't control their animal. Would recommend for someone to by a good nylon leash that isn't as breakable.

Pros: great for small dogs

Cons: not good for big dogs

This appears to be a well-made durable product. It is lightweight and easy to hold on to. I also like that it can be held as a short leash if you need to keep tight control of your dog. I don't tend to allow my dogs to the full length of the leash, however, as it gets too hard to control them when they get at that distance.

Pros: sturdu, durable

Cons: have to be careful to keep control

These leashes are very convenient. You can let the dogs go as far as you want them to. If they go too far, you can pull them back. Also, the leash never gets tied between their feet.

Pros: very convinient

Cons: almost none