I have always used Staples Multipurpose Paper for printing and other copying jobs. It is a great quality and the words do not bleed through. You cannot see the things printed on the back. That is important so that it is easy to read and easy to make additional copies. The inkjet printer I have has never smeered on this paper. So I highly recommend it.
We switched to Staples brand multi purpose paper years ago and have not been disappointed! We feel that it is every bit as good as the more expensive name brand paper products. The color is the "right" color white - not too bright not too dull. The thickness is the "right" thickness - doesn't get stuck in the copy machine doesn't take too many pieces when faxing. Occasionally the first couple of papers are wrinkled when opening a new ream but that is a typical problem and can happen with any brand (I believe). Have been completely satisfied with our switch to Staples brand paper!