about 40% of warriors dps comes from melee swings. The hit from razors edge increases total dps by 1*0.4=0.4%. The extra OH dps from gutter blade is, assuming only yellow cap, 1.1*0.89=0.891 dps.
You have to be doing more than 222.75 dps for razor's edge to provide more dps (well a little less than that cos i cba to fact in the one str difference). Chances are you won't be doing this value of dps thus gutter is better for dps.
For burst however the difference is so negligible it is indiscernible.
For survivability the 3 stam on gutter is obviously better.
Gutter > RE if you're not hit capped. However it is a very good place to pick up hit.