The best reason for choosing the Progressive is - from the web site "How stuff works". Energy absorption/dissipation - This rating, given in joules, tells you how much energy the surge protector can absorb before it fails. A higher number indicates greater protection. Look for a protector that is at least rated at 200 to 400 joules. For better protection, look for a rating of 600 joules or more.
Surge guard - 1050 Joules of power surge protection.
Progressive - Joule rating is 1790
Beyond this both have similar technical specs.
If either actually experiences a surge it will require service, to restore surge protection.