I am 41 in assassin and 31 or so into acrobat with 8 points or so into racial.
Certainly dex based is "better", by the numbers, certainly so. But its not the overwhelming difference I expected after seeing the changes, at least when comparing the two in actual game play. I play both equally well in EE quests. DPS is high on both builds now with the changes, the difference really isnt significant, IMO. I can hardly tell the difference in the time it takes to beat down trash between the two. I self heal a little less on the dex build. and thats about it. Assassinate DC ends up at 80 on both builds, so no real advantage there. I havent figured out yet, which build has the higher assassinate DC potential, but I think they will end up very close.
As for defense, I end up with 47 dodge on my halfling (2 or so off max for a pure rogue) and 42 on the int build (4 below max for that build). AC is about 10 better on the dex rogue. Saves are 5 better or so on the DEX build.
The only advantage an int based build has over dex is better INT skills, but thats a moot point really, as both hit no fail numbers. I guess you can say the int rogue doesn't have to gear up for int skills. LOL. And has more (useless) skills maxed.
A note on No Mercy: it requires a helpless state which does not happen enough for me to justify spending points in it, so I dumped it.