Lomita,
Here's a comparison chart:
http://www.tirepressuremonitor.com/Comparisons.htm
HawksHead seems to be the best in product and price.
They have a new model called the Talon that comes out just about now.
That's where my money is going.
Tire pressure:
What's max tire pressure on your tire sidewall?
What is the factory recommendation?
What does each wheel, axle, and total FW weigh?
What's the GVW of FW?
This is info you may need for a sound tire pressure decision.
Steve