Hard Plastic or soft Silicon iPhone 3GS case?

[OhioSandy]

We took a poll at the office between hard or soft cases... we are split between the two. 6 and 6 for each hard and soft cases.

Our cases are:

4 Belkin Silicone Sleeve Case
http://ecx.images-amazon.com/images/I/51jLYUkAnTL._SS500_.jpg
1 iSkin revo
http://ecx.images-amazon.com/images/I/41FnBjNbQxL._SS400_.jpg
2 Vaja hard leather case
http://ecx.images-amazon.com/images/I/41E7YSVfmkL._SS400_.jpg
4 IvySkin Quattro T4 glass screen hard case
http://www.covercase.com/media/catalog/product/t/4/t4.royal.1.png
1 Incase slider hard case
http://ecx.images-amazon.com/images/I/31hON-V2PeL._SS400_.jpg
What do you have and prefer?

[Gav2k]

Marware silicon case

[Daremo]

Speck CandyShell. Both soft material against the phone, and a hard shell outer coating. Best of both.