I have tried 2 silicone cases for Tour. The one that fits and look nicer is the one thaat aligns to the outer edge. You can still see verizon on bottom and the top part above the screen where the ear piece is is not covered. It si good for protection for scratches and will provide some buffer for falls. I like it because it fits like a glove and not bulky like the hard plastics. It is an OEM case and "blackberry" is on the back horizontally.
I gathe the preference is size of the Tour. Good luck.
Here is a link: Amazon.com: Blackberry Tour 9630 Silicone Skin Case [OEM] HDW-23471-001, Black: Cell Phones & Service
Can not beat the price and quality. Fits like a skin!