HSRP is still not what you want to concentrate on. Different mechanisms are in place for different purposes. As Mike mentioned, HSRP is for load balancing and hardware redundancy. You should be more concerned at maintaing your BGP connection for example, so that if one session is lost with an ISP it will automatically kick over to the other link.
Give us the details of how you are connected to these providers. Then we can suggest a "best of the situation" config. Regards,
Don