Seidio
1) Stronger, very well made
2) Holds the phone close to the hip
3) Has a very solid racheting swivel
4) Holds the phone more securely
5) Has polished contact spots to prevent wear

1) Dosent have a lock release
2) Is harder to remove the phone (takes 2 fingers instead on 1 like the proclip)

I used it as my main holster untill I found the Nutshell case. You can PM me an address and I'll send it to you.