I would strongly recommend RideMax over Touringplans. Admittedly, I have only used TP at WDW, but it was terribly inaccurate, in my opinion. Wheras RideMax was dead-on accurate at both DL and WDW. TP may do a better job at DL, but I don't plan to give it another chance personally.
What's more, I find RM to be VERY helpful when the park is busier. In fact, the busier the better for RM. I first used RM at DLR the week of Christmas to New Years, which is traditionally one of the busiest weeks of the year, and it was incredibly efficient at keeping my family out of long lines.