For starters, Sub-Zero should never be able to Slide spam, especially against Scorpion. Punish that shit with 214>DB3, 21>DB4, JIP, 4>BF1, JIP 4>DB3.
Secondly you can punish clone cancels on block with teleport, EX Teleport, or EX Take Down. You can punish clone on neutral with a hard read with DB4 into a combo, and teleport on reaction to both ice klone, or Ice ball. D4 is as much of your friend as it is to Sub-Zero. To be honest if you are in the corner you don't have many tools to get out, besides maybe an EX slide if you can make the appropriate read. But it's tough as balls to get out, can't really give you help there. He dominates everyone when he puts them in the corner.
EDIT: Forgot to mention Sub-Zero can slide all of your demons on reaction to it's start up, so...it's not a very valid tactic to use against him very often outside of the occasional check.
Takeda you'll have a tough time not getting slid on when you try to perform his longer range attacks. But if you can manage to block it pay him back gloriously with 44>EX BF2, B21>DB3, 33>EX BF1, Run up B21>BF1 for 50% to make him regret it...or something like dat...lol