In reply to California Climber:
The Dent is a classic, classic place and well worth visiting - but be warned, EVERYTHING is on an epic scale. I haven't done any of the short routes (10-15 pitches), but I have done the Pilier Sud twice: first time, we got benighted in shorts and the second time was a revenge assault, which we pulled off by the skins of our teeth. There are easier climbs, on better rock.
The routes on the southern side have a steep but shorter approach - but an @rse of a descent to get back to the valley. The shorter routes on the other side involve a longer walk-in, but you can descend the same way to the car park.
Route of the mountain is probably Les Enfants, but if it's suffering you're after, go for Pilier Sud, particularly with some trad variants on some pitches. The ridge off Le Main is a corker, but the following jardin is terrifying, particularly in the early morning dew; if you stop and look around at the bottom of the abseil off the top of Le Main, that's where we got stopped (long story), which turned out to be a perfect viewing point for a legendary meteor shower.
I will never, ever go back to the Dent D'Orlu. For at least a year.