Compared to other bands of the genre, they seem to be a lot more interesting. While they're not jumping around on stage like they did in the early 90s, they seem to put a lot more thought into putting on a show now.
MP is always surprisingly mobile and entertaining for a drummer, even walking around the kit at some points, and standing up, throwing sticks etc. One of the most entertaining drummers to watch.
JR is their most lively keyboardist, and even excluding the Keytar, he moves pretty freely with his spinning keyboard, able to face any direction he wants to play to the crowd.
JM has never really roamed, so no real change there.
JP stays fairly still, and just focuses on playing, so he's the only one I see being less lively than the early years.
And while JLB isn't exactly twirling around the stage anymore, he seems to have a much better grip on actual stage presence, and is a better frontman than he has ever been. At both of the DT shows I went to, he instantly got the crowd pumping, and really connected with the crowd with his constant running from side to side to make the the entire crowd felt included, and his mic stand antics were pretty cool to watch.
And then there's the stage show, with the props, the curtain, the video screen, and the designs on the drum heads, the keyboard stand etc.
DT aren't a full on metal band like Metallica, so I don't expect that level of intensity, but as far as their genre goes, I think they're quite good at the performance aspect.