I've seen hundreds, if not thousands of those panels over the years, and almost all of them had the woodgrain and the fratzog. The SE's had the woodgrain with the "Special Edition" script, and the carpeting with reflector on the bottom. I could count on one hand the panels I've seen without the woodgrain, and frankly, they're not very attractive.
The panels without woodgrain were on very early production 1970 models, built from August '69 through roughly October '69. They were also used on low-line models such as the A93 coupe package.
For the most part though, almost all '70-'74 Challengers will have the woodgrain insert in the doors with the Dodge triangle; the exception being SE or R/T SE models that had the Special Edition script as noted by another poster.
Roseville Dodge and Dante's Parts carry nearly perfect reproductions of the original panels if you're looking for a set.