i like the evans kick patch. its not much but it keeps my head alive without changing the sound much. i played with a gibraltar click patch for a while but my plastic pieces broke to pieces and the front cover came off so now i just have the back piece holding strong and its kept my head from getting a hole in it...but i definately prefer the evans.
I posted my experience with the Danmar eq patch a while back, I really dislike that thing, made my drum sound like a basketball.
I only use the Evans patches now, just to save wear and tear on the head.