Just in case you don't know, the DOW list on the website is the old list from white dwarf. The 2002 annual has the current, updated list. Mostly, they made a few units special choices (all the pikes, besiegers, vendetta) and changed some character equipment. They did also change the besiegers so that they only get a 3+ save vs missiles and a 5+ in combat, rather than 3+ for both. Sadly, they are now inferior to dwarf crossbowmen.
Anyway, I generally prefer the vanilla DOW over the ROR. Pikemen, Ogres, Dwarfs, Halfling Hotpot and maybe light cavalry are all quite good.
From the ROR I like Ricco's Republican Guard, Leopold's Leopard Company, Lumpin Croop's Halflings and the galloper gun. Well, I like the look and idea of the gun, but it doesn't seem like very good value for points.