I loved DOA2 on the Dreamcast, it looked so amazing, even after over a decade I still think it looks great, I love the fighting mechanics, pulling off a combo felt so great. I prefer the look of the older games than the latest version, something about the new look creeps me out, I can't put my finger on it.
Good old dreamcast. The designers pretty much exploited the machine's capacity to the max. More importantly, the game a great artistic direction which makes the game age well. I think the look and feel of DOA3 is the best in the series.
I prefer the older ones as well. Maybe the new look creeps you out because they are more realistic in a japanese type of game (maybe they don't work as well). Kasumi isn't as cute as she used to be.