Welcome, you have some the right place for educated advice.
My personal preference would be the Salem. I have never owned either, but have had 2 diferenr trailers from Forest River who builds the Salem. I can not say enough about their products and the after purchase support I have received. On my Rockwood, I developed a stress crack about 1 inch long, even out of the warrenty period, Forest River accepted reposibilty and made good on it. They said "This should not happen to a year and half old trailer". I personally liked the quality of the Forest River trailers better also. In the end, do what you are doing, ask the questions from the folks who have been around for a while and have the experiance. There are some organizations that rate these trailers. i do not recall off hand where this information is available, but I know someone will point you in the right direction. Goos luck, and enjoy whatever you decide on.
2005 F-250 XLT 4X4 V-10
2006 Wildcat 31QBH