kasumi is way stronger and faster in doa4 than sarah in vf5 (which is a much better balanced game). and no if you have ever played doa4 kasumi was all about jumping kicks, that also forced you to stand up from the ground and poking with those open hand punches that have insane range.
We weren't just comparing Sarah's VF5 version to Kasumi's DOA4 version, but there fundamentals throughout the whole series of each franchise. No ones saying they're exactly the same. Sarah has a second stance too when talking about the different fundamentals between the 2 (not to mention different fighting styles), and of course the different fundamentals between the games, which is what me and Crim mean, thanks to those similar fundamentals with moves and inputs Sarah has with Kasumi (both are even the more beginner friendly characters in each franchise) working her moveset into DOA's different system will be easier, and Sarah should fit into DOA's game engine quite well and be quit solid.
Sarah was a bit nerfed in VF5 because of system changes, especially with the lower overall damage compared to previous VF's (DOA4 on the other hand has freaking high damage output in general), Sarah's better in Final Showdown. Also besides that good range, Kasumi also had the fastest jab in all of DOA4. Had to play DOA4 characters in a a bit of a annoying way either way because of the counter system (which is said to be fixed in 5 since the demo release).