Well, for what it is worth, I have the Grado SR-60s and some Sennheiser HD600s (Which are somewhat similar to the Phillips HP890s). The Grados have the comfy pads.
Comfort wise, my Grados came pre-bent, and once I figured out how to adjust the damn things they have been fairly comfy. They feel a bit rough compared to the velvet HD600s, but are still reasonably comfortable on my smallish head.
The HD600s are quite a leap over the SR-60s in sound quality, but to someone who isn't used to listening to headphones, the difference probably won't be all that huge. The SR-60s are for the most part less pleasing to me, although they do have a couple charecteristics I like, a lot. I really like the bass the SR-60s have. While some might call it light, I think it is very tight, and it still has a good bit of an impact too, whereas the HD600s have a more full bodied, natural sound, they lack some of the spunk of the SR-60s.
So, while I like my HD600s more then the first impressions of my SR-60s, which is to be expected, I have been pleasantly surprised by the sound of the SR-60. They are somewhat bright to me with the comfy pads, might be fautiging over longer periods but for shorter times I haven't had any problems at all.
If the HP890s sound like I think they sound, I would take em over the SR-60s, and probably over the SR-80s, which people say are brighter then the 60s. I might try some bowl pads on these at some point, but not for now, and I have a nagging feeling I would like the comfies more.