Actually, having driven both Hyundai's 2.5 CRDi (Starex) and Ford's 2.5 CRDi (Everest), I can say this:

Taking into account merely the top-end power is misleading. What is more important is the torque-curve and the "power under the curve". In other words... power from the moment you step on the throttle till you run slap-bang into the rev limiter.

Ford's DuraTorqs are immensely accelerative. They have a ton of instant torque from the get-go all the way to the redline. In fact, in AT mode, they can be awfully jumpy. They're tuned for truck work, so low-to-midrange torque is more important than top-end power. But they do have power... more, in fact, under the curve than other engines rated within 5 hp of their lumps.

Hyunda's CRDis, on the other hand, have a smoother tip-in, and a seamless rush of torque up to redline. They're a bit more refined, but they're not a kick in the pants like Ford's DuraTorqs are. Still, they're the smoothest diesels out there, now, with the best top end power.

Toyota's D4Ds... well, they need some more refinement. Their turbo-engines seem to lack low-end punch, and torque comes on slowly. Great top-end, though. The best D4D I've driven so far is the Hiace's non-turbo lump. Lots of low down torque, perfect for city driving. I still don't get why their 2.5 is so gutless compared to the competition, when their 3.0 is actually pretty good.

Mitsubishi's DiD (Strada) feels a bit down on power compared to Hyundai's similar engines, but it drives the most like a gas engine amongst the CRDis I've driven so far.

Isuzu? Well, I'm waiting to see when their next generation CRDis will come out. They were into CRDi early (with the Trooper), but they're falling behind the curve.