Iphone case which is better?

I want the best shock/crash/drop proof/resistant case out there and I'm confused what to buy?

Should I go for the aluminum/titanium/metal bumper or should i just go with the silicone/rubber/jelly case? In your opinion which of the two is better when it comes to shock resistancy?

Stick with the silicon bumper I have once and i drop my phone All the time and nothing ever happens. Speck cases have strong protective cases with good bumpers if you need one.

Silicon type bumpers are better… Reasons--->

1) Protect the frame of your iPhone from abrasion
2) Conveniently to access and remove
3) All interface, ports and buttons available for directly use