Originally Posted by
nhluhr
I've never used the marathon myself but would it be correct to say it's a tougher/heavier tire than the Gatorskin? Also, it has some tread on it so it may be more ideal if the OP intends to ride in various conditions like dirt/gravel, sleet, etc but it might be a slower tire than the gatorskin on clearer pavement.
I've never used the Gatorskin but I would guess your analysis is about right. The marathon does have some tread and might be a bit slower. Though I find it fast enough for my loaded commuter bike.