Avoid outside and counter plays they are counter productive.
I deleted all those plays from my book to tell you the truth. If you want to run make sure that you have at least one fullback in there or chances are you are not going to get many yards. Like one poster said the Maryland (army run I believe) is one of the best formations to run from. The I formation is pretty good as well, and I use a torn of play action so the defense tends to bite on it A LOT. I use different setts of formations that contain 1-3 TEs with 1-2 FBs and 1-2 WRs,mostly power running plays. Using single back plays will get you no where fast.