I am glad you decided to fill the OP with thoughtful, informed, political dialog and a fair brown townysis of the candidates.
It would be terrible if you had just prepared a shoddy, un-formatted, poorly written, incorrect skim over the potentials using only 2 very vague factors.
For those that wish to make a more informed decision, visit each candiates personal webpage. They each list their ideas and policies for running the country, both in greater depth than you will find here.
Obama on Gun Control - Favors the outlawing of automatic weapons and does not desire to shield gun dealers and manufacturers from civil lawsuits.
McCain on Gun Control - Does not wish to outlaw automatic weapons and wishes to protect gun dealers and manufacturers.
Obama's General Policy - Favors more federal welfare programs and more intervention and regulation in business, especially in the financial sector
McCain's General Policy - - Desires to leave public welfare and healthcare to the private sector (businesses). Does not support greater Federal intervention.