Sawyer squeeze filter here. Just remember to bring along something to dip water to pour it into the squeeze bag.
The big advantage of the Sawyer Squeese Filter is the syringe that is included. It allows for back-flushing the filter element. I have even used the Sawyer syringe on my Platapus Waterworks filter. That saved me from spendiong $60 to replace my Platapus filter element. I have also combined some after market items to turn my squeeze filter into a gravity filter. You can sit on the bag and avoid squeezing. The dissadvantage of the Sawyer system is that the bags are prone to develope leaks. But you can buy a set of two 1/2 gallon bags at REI for $10.
