I get some of them confused, but if The Cowboys is the one with the kids and I think George Kennedy, I'd probably put Valance and Shootist at top and drop Cowboys to six maybe. They're all really good, all of those. Maybe just last Sunday, my wife and I watched Sons of KE (within the past week, at least).
I still haven't watched the new True Grit. I got the DVD a few years back and never got around to watching it.
EDIT: Forgot Searchers.
Man, top 5 Wayne is difficult. I've never thought about that before. Seriously, difficult.